I haven't decided in Spanish

When to use it: Say this when you are still considering your options and have not made a decision.

Todavía means still or yet; he decidido uses the present perfect for a decision up to now.

Say it: Stress the final syllable of todavía: toh-dah-BEE-ah.

When to use it: Use this when your schedule is open and no specific arrangement is set.

Planes fijos means plans that are fixed or settled, not merely ideas you have considered.

When to use it: Ask this to find out whether someone has plans during a particular time.

The blank can hold a time phrase such as este fin de semana or mañana.

Say it: In vas a hacer, link the words smoothly: bah-sah-ah-SER.

When to use it: Say this when you feel strong anticipation or enthusiasm about a future activity.

Ganas de is followed by an infinitive or noun; learn the chunk as a whole.

When to use it: Use this to explain that you are putting money aside for a future goal.

Ahorrando is the gerund of ahorrar, and para introduces the goal you are funding.

When to use it: Say this when you doubt that a future action will happen.

After no creo que, vaya is subjunctive because you are expressing doubt.

Say it: Vaya sounds like BAH-yah, with the stress on the first syllable.