How to Say Can in Japanese with Potential Form

Practice Time

Try changing each verb into the potential form. Keep the meaning in mind, not just the shape.

Now try the negative forms.

And one more step: make them polite.

Quick Reference Summary

• Potential form means “can” or “be able to.”
• It changes the verb itself.
• Common examples: 読める, 書ける, 話せる, 見られる, できる.
• Use が with the thing you can do: 日本語が読める.
• Use ます for polite speech: 読めます.
• Use the negative form for “cannot”: 読めない, 読めません.
• する becomes できる.
• 来る becomes 来られる.

The potential form is one of those grammar points that suddenly makes Japanese feel more alive. You are not just naming actions anymore. You are talking about ability, possibility, and real-world limits — which, honestly, is where the interesting sentences live.

Keep practicing with small, real sentences: what you can read, what you cannot do today, what you can see, what you can change later. That is where the form stops being “grammar” and starts being actual Japanese.

Common Mistakes And Fixes

• Using を instead of が
  Fix: With potential form, try 日本語が読める, not 日本語を読める.
• Forgetting the verb changes
  Fix: Learn the potential form as a new verb, not as “the same verb plus can.”
• Confusing できる with only “do”
  Fix: Remember できる often means “can do / be able to do.”
• Using the wrong politeness level
  Fix: Choose 読めます in polite situations and 読める in casual ones.
• Mixing up ability and permission
  Fix: If the issue is “Is it allowed?” use a permission pattern, not potential form.

If you want a quick check on your overall level before digging deeper into verb forms, try the Japanese Placement Test JLPT or the Japanese Vocabulary Test. Sneaky little check-ins like that can be very motivating.

Practice Time

Try changing each verb into the potential form. Keep the meaning in mind, not just the shape.

Now try the negative forms.

And one more step: make them polite.

Quick Reference Summary

• Potential form means “can” or “be able to.”
• It changes the verb itself.
• Common examples: 読める, 書ける, 話せる, 見られる, できる.
• Use が with the thing you can do: 日本語が読める.
• Use ます for polite speech: 読めます.
• Use the negative form for “cannot”: 読めない, 読めません.
• する becomes できる.
• 来る becomes 来られる.

The potential form is one of those grammar points that suddenly makes Japanese feel more alive. You are not just naming actions anymore. You are talking about ability, possibility, and real-world limits — which, honestly, is where the interesting sentences live.

Keep practicing with small, real sentences: what you can read, what you cannot do today, what you can see, what you can change later. That is where the form stops being “grammar” and starts being actual Japanese.

Mini Comparison: Can, Ability, And Permission

Do not mix these up too much. Can is about ability or possibility. May is about permission. Must is about obligation. If that trio starts fighting in your head, the comparison table is your referee. For a deeper look at obligation, visit must in Japanese. For permission patterns, see want in Japanese as a related grammar guide.

Common Mistakes And Fixes

• Using を instead of が
  Fix: With potential form, try 日本語が読める, not 日本語を読める.
• Forgetting the verb changes
  Fix: Learn the potential form as a new verb, not as “the same verb plus can.”
• Confusing できる with only “do”
  Fix: Remember できる often means “can do / be able to do.”
• Using the wrong politeness level
  Fix: Choose 読めます in polite situations and 読める in casual ones.
• Mixing up ability and permission
  Fix: If the issue is “Is it allowed?” use a permission pattern, not potential form.

If you want a quick check on your overall level before digging deeper into verb forms, try the Japanese Placement Test JLPT or the Japanese Vocabulary Test. Sneaky little check-ins like that can be very motivating.

Practice Time

Try changing each verb into the potential form. Keep the meaning in mind, not just the shape.

Now try the negative forms.

And one more step: make them polite.

Quick Reference Summary

• Potential form means “can” or “be able to.”
• It changes the verb itself.
• Common examples: 読める, 書ける, 話せる, 見られる, できる.
• Use が with the thing you can do: 日本語が読める.
• Use ます for polite speech: 読めます.
• Use the negative form for “cannot”: 読めない, 読めません.
• する becomes できる.
• 来る becomes 来られる.

The potential form is one of those grammar points that suddenly makes Japanese feel more alive. You are not just naming actions anymore. You are talking about ability, possibility, and real-world limits — which, honestly, is where the interesting sentences live.

Keep practicing with small, real sentences: what you can read, what you cannot do today, what you can see, what you can change later. That is where the form stops being “grammar” and starts being actual Japanese.

Common Real-Life Sentences

Mini Comparison: Can, Ability, And Permission

Do not mix these up too much. Can is about ability or possibility. May is about permission. Must is about obligation. If that trio starts fighting in your head, the comparison table is your referee. For a deeper look at obligation, visit must in Japanese. For permission patterns, see want in Japanese as a related grammar guide.

Common Mistakes And Fixes

• Using を instead of が
  Fix: With potential form, try 日本語が読める, not 日本語を読める.
• Forgetting the verb changes
  Fix: Learn the potential form as a new verb, not as “the same verb plus can.”
• Confusing できる with only “do”
  Fix: Remember できる often means “can do / be able to do.”
• Using the wrong politeness level
  Fix: Choose 読めます in polite situations and 読める in casual ones.
• Mixing up ability and permission
  Fix: If the issue is “Is it allowed?” use a permission pattern, not potential form.

If you want a quick check on your overall level before digging deeper into verb forms, try the Japanese Placement Test JLPT or the Japanese Vocabulary Test. Sneaky little check-ins like that can be very motivating.

Practice Time

Try changing each verb into the potential form. Keep the meaning in mind, not just the shape.

Now try the negative forms.

And one more step: make them polite.

Quick Reference Summary

• Potential form means “can” or “be able to.”
• It changes the verb itself.
• Common examples: 読める, 書ける, 話せる, 見られる, できる.
• Use が with the thing you can do: 日本語が読める.
• Use ます for polite speech: 読めます.
• Use the negative form for “cannot”: 読めない, 読めません.
• する becomes できる.
• 来る becomes 来られる.

The potential form is one of those grammar points that suddenly makes Japanese feel more alive. You are not just naming actions anymore. You are talking about ability, possibility, and real-world limits — which, honestly, is where the interesting sentences live.

Keep practicing with small, real sentences: what you can read, what you cannot do today, what you can see, what you can change later. That is where the form stops being “grammar” and starts being actual Japanese.

Important Special Case: できる

The verb する becomes できる in the potential form. This one is super important because できる is often used as a general “can do” word, not just for one action.

Examples:

Think of できる as the Swiss army knife of “can.” It is flexible, useful, and shows up all over the place.

Common Real-Life Sentences

Mini Comparison: Can, Ability, And Permission

Do not mix these up too much. Can is about ability or possibility. May is about permission. Must is about obligation. If that trio starts fighting in your head, the comparison table is your referee. For a deeper look at obligation, visit must in Japanese. For permission patterns, see want in Japanese as a related grammar guide.

Common Mistakes And Fixes

• Using を instead of が
  Fix: With potential form, try 日本語が読める, not 日本語を読める.
• Forgetting the verb changes
  Fix: Learn the potential form as a new verb, not as “the same verb plus can.”
• Confusing できる with only “do”
  Fix: Remember できる often means “can do / be able to do.”
• Using the wrong politeness level
  Fix: Choose 読めます in polite situations and 読める in casual ones.
• Mixing up ability and permission
  Fix: If the issue is “Is it allowed?” use a permission pattern, not potential form.

If you want a quick check on your overall level before digging deeper into verb forms, try the Japanese Placement Test JLPT or the Japanese Vocabulary Test. Sneaky little check-ins like that can be very motivating.

Practice Time

Try changing each verb into the potential form. Keep the meaning in mind, not just the shape.

Now try the negative forms.

And one more step: make them polite.

Quick Reference Summary

• Potential form means “can” or “be able to.”
• It changes the verb itself.
• Common examples: 読める, 書ける, 話せる, 見られる, できる.
• Use が with the thing you can do: 日本語が読める.
• Use ます for polite speech: 読めます.
• Use the negative form for “cannot”: 読めない, 読めません.
• する becomes できる.
• 来る becomes 来られる.

The potential form is one of those grammar points that suddenly makes Japanese feel more alive. You are not just naming actions anymore. You are talking about ability, possibility, and real-world limits — which, honestly, is where the interesting sentences live.

Keep practicing with small, real sentences: what you can read, what you cannot do today, what you can see, what you can change later. That is where the form stops being “grammar” and starts being actual Japanese.

Positive And Negative Potential Form

You can also say what is not possible. That is where can not lives.

読めない Yomenai means “cannot read,” and 読めません Yomemasen is the polite version. Same idea, different social setting. Japanese loves social settings. Really, truly loves them.

Important Special Case: できる

The verb する becomes できる in the potential form. This one is super important because できる is often used as a general “can do” word, not just for one action.

Examples:

Think of できる as the Swiss army knife of “can.” It is flexible, useful, and shows up all over the place.

Common Real-Life Sentences

Mini Comparison: Can, Ability, And Permission

Do not mix these up too much. Can is about ability or possibility. May is about permission. Must is about obligation. If that trio starts fighting in your head, the comparison table is your referee. For a deeper look at obligation, visit must in Japanese. For permission patterns, see want in Japanese as a related grammar guide.

Common Mistakes And Fixes

• Using を instead of が
  Fix: With potential form, try 日本語が読める, not 日本語を読める.
• Forgetting the verb changes
  Fix: Learn the potential form as a new verb, not as “the same verb plus can.”
• Confusing できる with only “do”
  Fix: Remember できる often means “can do / be able to do.”
• Using the wrong politeness level
  Fix: Choose 読めます in polite situations and 読める in casual ones.
• Mixing up ability and permission
  Fix: If the issue is “Is it allowed?” use a permission pattern, not potential form.

If you want a quick check on your overall level before digging deeper into verb forms, try the Japanese Placement Test JLPT or the Japanese Vocabulary Test. Sneaky little check-ins like that can be very motivating.

Practice Time

Try changing each verb into the potential form. Keep the meaning in mind, not just the shape.

Now try the negative forms.

And one more step: make them polite.

Quick Reference Summary

• Potential form means “can” or “be able to.”
• It changes the verb itself.
• Common examples: 読める, 書ける, 話せる, 見られる, できる.
• Use が with the thing you can do: 日本語が読める.
• Use ます for polite speech: 読めます.
• Use the negative form for “cannot”: 読めない, 読めません.
• する becomes できる.
• 来る becomes 来られる.

The potential form is one of those grammar points that suddenly makes Japanese feel more alive. You are not just naming actions anymore. You are talking about ability, possibility, and real-world limits — which, honestly, is where the interesting sentences live.

Keep practicing with small, real sentences: what you can read, what you cannot do today, what you can see, what you can change later. That is where the form stops being “grammar” and starts being actual Japanese.

Polite And Casual Ways To Say “Can”

The polite form is usually the safest choice in writing and everyday respectful speech. The casual form is common with friends, family, and anyone who already knows you are not trying to sound like a robot in a suit.

Positive And Negative Potential Form

You can also say what is not possible. That is where can not lives.

読めない Yomenai means “cannot read,” and 読めません Yomemasen is the polite version. Same idea, different social setting. Japanese loves social settings. Really, truly loves them.

Important Special Case: できる

The verb する becomes できる in the potential form. This one is super important because できる is often used as a general “can do” word, not just for one action.

Examples:

Think of できる as the Swiss army knife of “can.” It is flexible, useful, and shows up all over the place.

Common Real-Life Sentences

Mini Comparison: Can, Ability, And Permission

Do not mix these up too much. Can is about ability or possibility. May is about permission. Must is about obligation. If that trio starts fighting in your head, the comparison table is your referee. For a deeper look at obligation, visit must in Japanese. For permission patterns, see want in Japanese as a related grammar guide.

Common Mistakes And Fixes

• Using を instead of が
  Fix: With potential form, try 日本語が読める, not 日本語を読める.
• Forgetting the verb changes
  Fix: Learn the potential form as a new verb, not as “the same verb plus can.”
• Confusing できる with only “do”
  Fix: Remember できる often means “can do / be able to do.”
• Using the wrong politeness level
  Fix: Choose 読めます in polite situations and 読める in casual ones.
• Mixing up ability and permission
  Fix: If the issue is “Is it allowed?” use a permission pattern, not potential form.

If you want a quick check on your overall level before digging deeper into verb forms, try the Japanese Placement Test JLPT or the Japanese Vocabulary Test. Sneaky little check-ins like that can be very motivating.

Practice Time

Try changing each verb into the potential form. Keep the meaning in mind, not just the shape.

Now try the negative forms.

And one more step: make them polite.

Quick Reference Summary

• Potential form means “can” or “be able to.”
• It changes the verb itself.
• Common examples: 読める, 書ける, 話せる, 見られる, できる.
• Use が with the thing you can do: 日本語が読める.
• Use ます for polite speech: 読めます.
• Use the negative form for “cannot”: 読めない, 読めません.
• する becomes できる.
• 来る becomes 来られる.

The potential form is one of those grammar points that suddenly makes Japanese feel more alive. You are not just naming actions anymore. You are talking about ability, possibility, and real-world limits — which, honestly, is where the interesting sentences live.

Keep practicing with small, real sentences: what you can read, what you cannot do today, what you can see, what you can change later. That is where the form stops being “grammar” and starts being actual Japanese.

Rule For The Particle が

With potential form, the thing that can be done is usually followed by が instead of を.

This is one of the most useful habits to build early. If you keep using を out of muscle memory, your sentence may still be understood, but the natural feel gets a little wobbly. Like wearing one formal shoe and one sneaker.

Polite And Casual Ways To Say “Can”

The polite form is usually the safest choice in writing and everyday respectful speech. The casual form is common with friends, family, and anyone who already knows you are not trying to sound like a robot in a suit.

Positive And Negative Potential Form

You can also say what is not possible. That is where can not lives.

読めない Yomenai means “cannot read,” and 読めません Yomemasen is the polite version. Same idea, different social setting. Japanese loves social settings. Really, truly loves them.

Important Special Case: できる

The verb する becomes できる in the potential form. This one is super important because できる is often used as a general “can do” word, not just for one action.

Examples:

Think of できる as the Swiss army knife of “can.” It is flexible, useful, and shows up all over the place.

Common Real-Life Sentences

Mini Comparison: Can, Ability, And Permission

Do not mix these up too much. Can is about ability or possibility. May is about permission. Must is about obligation. If that trio starts fighting in your head, the comparison table is your referee. For a deeper look at obligation, visit must in Japanese. For permission patterns, see want in Japanese as a related grammar guide.

Common Mistakes And Fixes

• Using を instead of が
  Fix: With potential form, try 日本語が読める, not 日本語を読める.
• Forgetting the verb changes
  Fix: Learn the potential form as a new verb, not as “the same verb plus can.”
• Confusing できる with only “do”
  Fix: Remember できる often means “can do / be able to do.”
• Using the wrong politeness level
  Fix: Choose 読めます in polite situations and 読める in casual ones.
• Mixing up ability and permission
  Fix: If the issue is “Is it allowed?” use a permission pattern, not potential form.

If you want a quick check on your overall level before digging deeper into verb forms, try the Japanese Placement Test JLPT or the Japanese Vocabulary Test. Sneaky little check-ins like that can be very motivating.

Practice Time

Try changing each verb into the potential form. Keep the meaning in mind, not just the shape.

Now try the negative forms.

And one more step: make them polite.

Quick Reference Summary

• Potential form means “can” or “be able to.”
• It changes the verb itself.
• Common examples: 読める, 書ける, 話せる, 見られる, できる.
• Use が with the thing you can do: 日本語が読める.
• Use ます for polite speech: 読めます.
• Use the negative form for “cannot”: 読めない, 読めません.
• する becomes できる.
• 来る becomes 来られる.

The potential form is one of those grammar points that suddenly makes Japanese feel more alive. You are not just naming actions anymore. You are talking about ability, possibility, and real-world limits — which, honestly, is where the interesting sentences live.

Keep practicing with small, real sentences: what you can read, what you cannot do today, what you can see, what you can change later. That is where the form stops being “grammar” and starts being actual Japanese.

Useful Potential Form Phrases

Notice the pattern in real sentences: the thing you can do is often marked with が. That matters. Japanese grammar loves to make tiny choices that feel huge later.

How To Build The Potential Form

There are different verb groups, so the form changes depending on the verb. Here is the short version.

Yes, 見る becomes 見られる. Yes, 来る becomes 来られる. Japanese did not choose the short path here, but at least the forms are regular enough to learn.

Rule For The Particle が

With potential form, the thing that can be done is usually followed by が instead of を.

This is one of the most useful habits to build early. If you keep using を out of muscle memory, your sentence may still be understood, but the natural feel gets a little wobbly. Like wearing one formal shoe and one sneaker.

Polite And Casual Ways To Say “Can”

The polite form is usually the safest choice in writing and everyday respectful speech. The casual form is common with friends, family, and anyone who already knows you are not trying to sound like a robot in a suit.

Positive And Negative Potential Form

You can also say what is not possible. That is where can not lives.

読めない Yomenai means “cannot read,” and 読めません Yomemasen is the polite version. Same idea, different social setting. Japanese loves social settings. Really, truly loves them.

Important Special Case: できる

The verb する becomes できる in the potential form. This one is super important because できる is often used as a general “can do” word, not just for one action.

Examples:

Think of できる as the Swiss army knife of “can.” It is flexible, useful, and shows up all over the place.

Common Real-Life Sentences

Mini Comparison: Can, Ability, And Permission

Do not mix these up too much. Can is about ability or possibility. May is about permission. Must is about obligation. If that trio starts fighting in your head, the comparison table is your referee. For a deeper look at obligation, visit must in Japanese. For permission patterns, see want in Japanese as a related grammar guide.

Common Mistakes And Fixes

• Using を instead of が
  Fix: With potential form, try 日本語が読める, not 日本語を読める.
• Forgetting the verb changes
  Fix: Learn the potential form as a new verb, not as “the same verb plus can.”
• Confusing できる with only “do”
  Fix: Remember できる often means “can do / be able to do.”
• Using the wrong politeness level
  Fix: Choose 読めます in polite situations and 読める in casual ones.
• Mixing up ability and permission
  Fix: If the issue is “Is it allowed?” use a permission pattern, not potential form.

If you want a quick check on your overall level before digging deeper into verb forms, try the Japanese Placement Test JLPT or the Japanese Vocabulary Test. Sneaky little check-ins like that can be very motivating.

Practice Time

Try changing each verb into the potential form. Keep the meaning in mind, not just the shape.

Now try the negative forms.

And one more step: make them polite.

Quick Reference Summary

• Potential form means “can” or “be able to.”
• It changes the verb itself.
• Common examples: 読める, 書ける, 話せる, 見られる, できる.
• Use が with the thing you can do: 日本語が読める.
• Use ます for polite speech: 読めます.
• Use the negative form for “cannot”: 読めない, 読めません.
• する becomes できる.
• 来る becomes 来られる.

The potential form is one of those grammar points that suddenly makes Japanese feel more alive. You are not just naming actions anymore. You are talking about ability, possibility, and real-world limits — which, honestly, is where the interesting sentences live.

Keep practicing with small, real sentences: what you can read, what you cannot do today, what you can see, what you can change later. That is where the form stops being “grammar” and starts being actual Japanese.

Core Pattern: Verb Into Potential Form

Most verbs change their ending to show ability. This is the part where Japanese says, “Let me rewrite the verb itself instead of adding a helper word.” Cute. Efficient. Slightly annoying at first.

Useful Potential Form Phrases

Notice the pattern in real sentences: the thing you can do is often marked with が. That matters. Japanese grammar loves to make tiny choices that feel huge later.

How To Build The Potential Form

There are different verb groups, so the form changes depending on the verb. Here is the short version.

Yes, 見る becomes 見られる. Yes, 来る becomes 来られる. Japanese did not choose the short path here, but at least the forms are regular enough to learn.

Rule For The Particle が

With potential form, the thing that can be done is usually followed by が instead of を.

This is one of the most useful habits to build early. If you keep using を out of muscle memory, your sentence may still be understood, but the natural feel gets a little wobbly. Like wearing one formal shoe and one sneaker.

Polite And Casual Ways To Say “Can”

The polite form is usually the safest choice in writing and everyday respectful speech. The casual form is common with friends, family, and anyone who already knows you are not trying to sound like a robot in a suit.

Positive And Negative Potential Form

You can also say what is not possible. That is where can not lives.

読めない Yomenai means “cannot read,” and 読めません Yomemasen is the polite version. Same idea, different social setting. Japanese loves social settings. Really, truly loves them.

Important Special Case: できる

The verb する becomes できる in the potential form. This one is super important because できる is often used as a general “can do” word, not just for one action.

Examples:

Think of できる as the Swiss army knife of “can.” It is flexible, useful, and shows up all over the place.

Common Real-Life Sentences

Mini Comparison: Can, Ability, And Permission

Do not mix these up too much. Can is about ability or possibility. May is about permission. Must is about obligation. If that trio starts fighting in your head, the comparison table is your referee. For a deeper look at obligation, visit must in Japanese. For permission patterns, see want in Japanese as a related grammar guide.

Common Mistakes And Fixes

• Using を instead of が
  Fix: With potential form, try 日本語が読める, not 日本語を読める.
• Forgetting the verb changes
  Fix: Learn the potential form as a new verb, not as “the same verb plus can.”
• Confusing できる with only “do”
  Fix: Remember できる often means “can do / be able to do.”
• Using the wrong politeness level
  Fix: Choose 読めます in polite situations and 読める in casual ones.
• Mixing up ability and permission
  Fix: If the issue is “Is it allowed?” use a permission pattern, not potential form.

If you want a quick check on your overall level before digging deeper into verb forms, try the Japanese Placement Test JLPT or the Japanese Vocabulary Test. Sneaky little check-ins like that can be very motivating.

Practice Time

Try changing each verb into the potential form. Keep the meaning in mind, not just the shape.

Now try the negative forms.

And one more step: make them polite.

Quick Reference Summary

• Potential form means “can” or “be able to.”
• It changes the verb itself.
• Common examples: 読める, 書ける, 話せる, 見られる, できる.
• Use が with the thing you can do: 日本語が読める.
• Use ます for polite speech: 読めます.
• Use the negative form for “cannot”: 読めない, 読めません.
• する becomes できる.
• 来る becomes 来られる.

The potential form is one of those grammar points that suddenly makes Japanese feel more alive. You are not just naming actions anymore. You are talking about ability, possibility, and real-world limits — which, honestly, is where the interesting sentences live.

Keep practicing with small, real sentences: what you can read, what you cannot do today, what you can see, what you can change later. That is where the form stops being “grammar” and starts being actual Japanese.

Potential Form in Japanese: How to Say Can and Cannot Naturally. Japanese has a neat little trick for saying “can” and “cannot,” and no, it is not just a matter of throwing in a random できる and hoping for the best. The potential form changes the verb itself, which is very Japanese and very efficient. Slightly dramatic, but useful.

If you have ever wanted to say “I can read kanji,” “Can you speak Japanese?,” or “I cannot go today,” this lesson is for you. The good news: the pattern is not scary. The better news: once you learn it, you will start spotting it everywhere in real Japanese.

A lot of learners first meet potential form in textbooks, then later hear it in real speech and think, “Ah. So that’s what that was.” This article will help make that moment arrive sooner, with clear examples, simple explanations, and enough practice to make the form stick.

What The Potential Form Means

The potential form shows ability or possibility. In simple English, it usually means can or be able to.

For example, 読む Yomu means “to read,” but 読める Yomeru means “can read.” Same action, new ability. Japanese likes to keep things tidy like that.

For a quick general overview of Japanese grammar and verb groups, the Learn Japanese pillar page is a useful place to wander next. No pressure. Language is just a series of tiny adventures with extra punctuation.

Core Pattern: Verb Into Potential Form

Most verbs change their ending to show ability. This is the part where Japanese says, “Let me rewrite the verb itself instead of adding a helper word.” Cute. Efficient. Slightly annoying at first.

Useful Potential Form Phrases

Notice the pattern in real sentences: the thing you can do is often marked with が. That matters. Japanese grammar loves to make tiny choices that feel huge later.

How To Build The Potential Form

There are different verb groups, so the form changes depending on the verb. Here is the short version.

Yes, 見る becomes 見られる. Yes, 来る becomes 来られる. Japanese did not choose the short path here, but at least the forms are regular enough to learn.

Rule For The Particle が

With potential form, the thing that can be done is usually followed by が instead of を.

This is one of the most useful habits to build early. If you keep using を out of muscle memory, your sentence may still be understood, but the natural feel gets a little wobbly. Like wearing one formal shoe and one sneaker.

Polite And Casual Ways To Say “Can”

The polite form is usually the safest choice in writing and everyday respectful speech. The casual form is common with friends, family, and anyone who already knows you are not trying to sound like a robot in a suit.

Positive And Negative Potential Form

You can also say what is not possible. That is where can not lives.

読めない Yomenai means “cannot read,” and 読めません Yomemasen is the polite version. Same idea, different social setting. Japanese loves social settings. Really, truly loves them.

Important Special Case: できる

The verb する becomes できる in the potential form. This one is super important because できる is often used as a general “can do” word, not just for one action.

Examples:

Think of できる as the Swiss army knife of “can.” It is flexible, useful, and shows up all over the place.

Common Real-Life Sentences

Mini Comparison: Can, Ability, And Permission

Do not mix these up too much. Can is about ability or possibility. May is about permission. Must is about obligation. If that trio starts fighting in your head, the comparison table is your referee. For a deeper look at obligation, visit must in Japanese. For permission patterns, see want in Japanese as a related grammar guide.

Common Mistakes And Fixes

• Using を instead of が
  Fix: With potential form, try 日本語が読める, not 日本語を読める.
• Forgetting the verb changes
  Fix: Learn the potential form as a new verb, not as “the same verb plus can.”
• Confusing できる with only “do”
  Fix: Remember できる often means “can do / be able to do.”
• Using the wrong politeness level
  Fix: Choose 読めます in polite situations and 読める in casual ones.
• Mixing up ability and permission
  Fix: If the issue is “Is it allowed?” use a permission pattern, not potential form.

If you want a quick check on your overall level before digging deeper into verb forms, try the Japanese Placement Test JLPT or the Japanese Vocabulary Test. Sneaky little check-ins like that can be very motivating.

Practice Time

Try changing each verb into the potential form. Keep the meaning in mind, not just the shape.

Now try the negative forms.

And one more step: make them polite.

Quick Reference Summary

• Potential form means “can” or “be able to.”
• It changes the verb itself.
• Common examples: 読める, 書ける, 話せる, 見られる, できる.
• Use が with the thing you can do: 日本語が読める.
• Use ます for polite speech: 読めます.
• Use the negative form for “cannot”: 読めない, 読めません.
• する becomes できる.
• 来る becomes 来られる.

The potential form is one of those grammar points that suddenly makes Japanese feel more alive. You are not just naming actions anymore. You are talking about ability, possibility, and real-world limits — which, honestly, is where the interesting sentences live.

Keep practicing with small, real sentences: what you can read, what you cannot do today, what you can see, what you can change later. That is where the form stops being “grammar” and starts being actual Japanese.