How to Say "you'll go" in Spanish
The Spanish word for “you'll go” is “vayas” — A2 level. This is a very common word in everyday Spanish.

Examples
Espero que vayas a la fiesta.
I hope that you go to the party.
Cuando vayas a México, visita las pirámides.
When you go to Mexico, visit the pyramids.
Es importante que vayas al médico.
It's important that you go to the doctor.
The 'Wishing and Doubting' Verb Form (Subjunctive)
In Spanish, after phrases that express wishes, doubts, recommendations, or emotions (like 'espero que...' or 'quiero que...'), the following verb often changes to this special form. 'Vayas' is the form for 'tú' (you). It shows that you're talking about something that isn't a sure thing.
Talking About the Future with 'Cuando'
Even though it might feel strange, when you use 'cuando' (when) to talk about a future event, you must use 'vayas' instead of 'vas'. For example: 'Cuando vayas a la tienda, compra pan.' (When you go to the store, buy bread.)
Using 'vas' instead of 'vayas'
Mistake: “Quiero que vas conmigo.”
Correction: Quiero que vayas conmigo. After a 'trigger phrase' like 'Quiero que...' (I want that...), Spanish requires this special verb form to show it's a desire, not a fact.
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