c'est toi qui vas

you're the one who's going to

→ ce
phrase Rare #29,437
you're the one who's going to Used to emphasize that the person addressed will perform an action or experience something. In standard French, the verb agrees with toi: c'est toi qui vas. A colloquial va is also sometimes heard.
FR: C'est toi qui vas préparer le dîner ce soir.
EN: You're the one who's going to make dinner tonight.

C'est toi qui vas te calmer.

You're the one who needs to calm down.

— La La Land (2016)

C'est toi qui vas morfler, t'es la mère.

You're the one who's gonna get it—you’re the mother.

— Faute d'amour (2017)

C'est toi qui vas l'aider.

You're the one who's going to help him.

— Apocalypse Now (1979)

C'est toi qui vas mourir, si tu fais pas ce que je dis.

You're the one who's going to die if you don't do what I say.

— La Cité de Dieu (2002)

C'est toi qui vas lui dire!

You're the one who's going to tell them!

— Faute d'amour (2017)

C'est toi qui vas décider, Piment?

Are you the one who's going to decide, Piment?

— Carandiru (2003)

Non, c'est toi qui vas m'écouter.

No, you're the one who's going to listen to me.

C'est toi qui vas payer.

You're the one who's going to pay.

Pis c'est toi qui vas m'aimer de moins en moins.

And then you're the one who's going to love me less and less.

— Mommy (2014)

C'est toi qui vas m'écouter.

You're the one who's going to listen to me.