Simplified Chinese 了 (le) For Completed Actions

Learn how to use the aspect particle 了 (le), also called 完成体助词了 (wánchéngtǐ zhùcí le), to say you did something, finished something, or already made it happen.

The tiny little 了 (le) does a lot of heavy lifting in simplified Chinese. Put it in the right place, and suddenly your sentence stops sounding like a floating idea and starts sounding like an actual thing that happened.

This guide focuses on 了 (le) for completed actions. That means you will learn how to say things like “I ate,” “she bought it,” and “we finished the homework” without making a grammar mess of it. Lovely. Efficient. Slightly smug.

Yak Snark Box

If you keep translating English word by word, 了 (le) will annoy you. If you think of it as a marker that says “this action is completed,” it suddenly behaves much better. Still dramatic, but better.

What 了 (le) Does In Completed Actions

For completed actions, 了 (le) usually goes after the verb. It shows that the action happened and is viewed as finished.

Pattern	Meaning	Example (ZH)	Example (Pinyin)	English
Subject + Verb + 了 (le)	Did an action	我吃了。	Wǒ chī le.	I ate.
Subject + Verb + Object + 了 (le)	Completed an action with an object	她买书了。	Tā mǎi shū le.	She bought books.
Subject + 没有 (méiyǒu) + Verb + Object	Did not do it	我没有买咖啡。	Wǒ méiyǒu mǎi kāfēi.	I did not buy coffee.
Verb + 了 (le) + 吗 (ma)	Did it happen?	你吃了饭吗？	Nǐ chī le fàn ma?	Did you eat?

Rule One: Put 了 (le) After The Verb

This is the most common beginner pattern. The action is done, so 了 (le) sits right after the verb.

我吃了早饭。
Wǒ chī le zǎofàn.
I ate breakfast.
他看了电影。
Tā kàn le diànyǐng.
He watched a movie.
我们做了作业。
Wǒmen zuò le zuòyè.
We did the homework.
她买了衣服。
Tā mǎi le yīfu.
She bought clothes.

Notice the pattern: verb first, then 了 (le), then the object if there is one. Nice and tidy.

Rule Two: Time Words Often Make 了 (le) Sound More Natural

Completed actions often show up with time words like 今天 (jīntiān), 昨天 (zuótiān), 刚才 (gāngcái), or already-type ideas. Chinese does not need tense endings like English, so these time words help anchor the action.

昨天
zuótiān
yesterday

我昨天去了学校。
Wǒ zuótiān qù le xuéxiào.
I went to school yesterday.

刚才
gāngcái
just now

我刚才给你发了消息。
Wǒ gāngcái gěi nǐ fā le xiāoxi.
I just sent you a message.

今天
jīntiān
today

她今天喝了三杯咖啡。
Tā jīntiān hē le sān bēi kāfēi.
She drank three cups of coffee today.

Rule Three: Negatives Use 没有 (méiyǒu), Not 不 (bù)

This is a classic beginner trap. For a completed action, use 没有 (méiyǒu) to say something did not happen. Do not stick 不 (bù) in front of the verb and hope for the best.

Wrong Idea	Correct Form	Pinyin	English
我不吃早饭。	我没有吃早饭。	Wǒ méiyǒu chī zǎofàn.	I did not eat breakfast.
他不看电影。	他没有看电影。	Tā méiyǒu kàn diànyǐng.	He did not watch a movie.
我们不做作业。	我们没有做作业。	Wǒmen méiyǒu zuò zuòyè.	We did not do the homework.

Use 不 (bù) for habits, preferences, or future choices. Use 没有 (méiyǒu) for completed actions that did not happen.

我不喝咖啡。
Wǒ bù hē kāfēi.
I do not drink coffee.
我没有喝咖啡。
Wǒ méiyǒu hē kāfēi.
I did not drink coffee.

Rule Four: Yes-No Questions Are Easy

To ask whether a completed action happened, keep the sentence and add 吗 (ma) at the end. Nice. Clean. No acrobatics required.

你吃了饭吗？
Nǐ chī le fàn ma?
Did you eat?
他买了票吗？
Tā mǎi le piào ma?
Did he buy the ticket?
你看了那个视频吗？
Nǐ kàn le nàge shìpín ma?
Did you watch that video?
她给你打了电话吗？
Tā gěi nǐ dǎ le diànhuà ma?
Did she call you?

Possible answers:

吃了。
Chī le.
Ate.
没有吃。
Méiyǒu chī.
Did not eat.
买了。
Mǎi le.
Bought it.
没有买。
Méiyǒu mǎi.
Did not buy it.

Rule Five: 了 (le) Is Not The Same As “Finished”

Using 了 (le) does not always mean every last drop of effort is over forever. It marks the action as completed in the sentence. That is different from the verb 完 (wán), which means “finish” in a more literal sense.

Sentence	Pinyin	Meaning
我看了这本书。	Wǒ kàn le zhè běn shū.	I read this book.
我看完了这本书。	Wǒ kàn wán le zhè běn shū.	I finished reading this book.
她写了报告。	Tā xiě le bàogào.	She wrote the report.
她写完了报告。	Tā xiě wán le bàogào.	She finished writing the report.

Useful Real-Life Sentences With 了 (le)

These are the kinds of sentences you will actually use, not just admire politely from a grammar table.

我到了。
Wǒ dào le.
I arrived.
我下班了。
Wǒ xiàbān le.
I got off work.
我洗了澡。
Wǒ xǐ le zǎo.
I took a shower.
她回家了。
Tā huí jiā le.
She went home.
我们订了酒店。
Wǒmen dìng le jiǔdiàn.
We booked the hotel.
他发了邮件。
Tā fā le yóujiàn.
He sent the email.
我关了门。
Wǒ guān le mén.
I closed the door.
你带了护照吗？
Nǐ dài le hùzhào ma?
Did you bring your passport?
我买了水果。
Wǒ mǎi le shuǐguǒ.
I bought fruit.
她换了工作。
Tā huàn le gōngzuò.
She changed jobs.
我已经吃了。
Wǒ yǐjīng chī le.
I already ate.
他们学了很多汉字。
Tāmen xué le hěn duō hànzì.
They learned many Chinese characters.

Quick Confusion Fix: Verb + 了 (le) Vs Sentence-End 了 (le)

Beginners often meet two common patterns:

我买了书。
Wǒ mǎi le shū.
I bought books.
下雨了。
Xiàyǔ le.
It started raining, or it is raining now as a new situation.

In this article, the star of the show is verb + 了 (le) for completed action. Sentence-final 了 (le) often points to a new situation or change of state. They are related, but not identical. Chinese loves tiny particles with oversized personalities.

Practice Section

Try these mini drills. First, read the prompt. Then check the answer right below it.

Swap The Verb

eat breakfast → 我吃了早饭。
Wǒ chī le zǎofàn.
I ate breakfast.
buy coffee → 她买了咖啡。
Tā mǎi le kāfēi.
She bought coffee.
watch TV → 我们看了电视。
Wǒmen kàn le diànshì.
We watched TV.

Make It Negative

我买了票。 → 我没有买票。
Wǒ méiyǒu mǎi piào.
I did not buy the ticket.
他喝了水。 → 他没有喝水。
Tā méiyǒu hē shuǐ.
He did not drink water.
你写了作业。 → 你没有写作业。
Nǐ méiyǒu xiě zuòyè.
You did not do the homework.

Turn It Into A Question

你吃了饭。 → 你吃了饭吗？
Nǐ chī le fàn ma?
Did you eat?
她到了。 → 她到了吗？
Tā dào le ma?
Did she arrive?
你看了电影。 → 你看了电影吗？
Nǐ kàn le diànyǐng ma?
Did you watch the movie?

Common Mistakes And Fast Fixes

Mistake	Fix	Example	Pinyin	English
Using 不 (bù) for a completed negative	Use 没有 (méiyǒu)	我没有去。	Wǒ méiyǒu qù.	I did not go.
Forgetting 了 (le) after the verb	Put 了 (le) after the action verb	他买了水果。	Tā mǎi le shuǐguǒ.	He bought fruit.
Thinking 了 (le) always means “finished completely”	It marks completed action, not always total completion	我看了书。	Wǒ kàn le shū.	I read books.
Mixing up verb + 了 (le) with sentence-final 了 (le)	Learn the completed-action pattern first	我吃了饭。	Wǒ chī le fàn.	I ate.

Quick Reference Summary

Completed action: Verb + 了 (le)
我买了书。
Wǒ mǎi le shū.
I bought books.
Negative: 没有 (méiyǒu) + Verb
我没有买书。
Wǒ méiyǒu mǎi shū.
I did not buy books.
Question: Statement + 吗 (ma)
你买了书吗？
Nǐ mǎi le shū ma?
Did you buy books?
Total completion: Verb + 完 (wán) + 了 (le)
我看完了。
Wǒ kàn wán le.
I finished reading it.

Mini Table Of High-Use Verbs With 了 (le)

Hanzi	Pinyin	Meaning	Example (ZH)	Example (Pinyin)	Translation (EN)
吃了	chī le	ate	我吃了面。	Wǒ chī le miàn.	I ate noodles.
喝了	hē le	drank	她喝了茶。	Tā hē le chá.	She drank tea.
去了	qù le	went	他去了北京。	Tā qù le Běijīng.	He went to Beijing.
来了	lái le	came	朋友来了。	Péngyou lái le.	A friend came.
买了	mǎi le	bought	我买了牛奶。	Wǒ mǎi le niúnǎi.	I bought milk.
写了	xiě le	wrote	她写了邮件。	Tā xiě le yóujiàn.	She wrote an email.
看了	kàn le	watched / read	我们看了比赛。	Wǒmen kàn le bǐsài.	We watched the match.
做了	zuò le	did / made	我做了晚饭。	Wǒ zuò le wǎnfàn.	I made dinner.

Final Yak Box

If you can say 我吃了。
Wǒ chī le.
I ate.

and also say 我没有吃。
Wǒ méiyǒu chī.
I did not eat.

and ask 你吃了吗？
Nǐ chī le ma?
Did you eat?

then congratulations, you already understand the core survival use of completed-action 了 (le). Tiny particle, huge upgrade.