tú prometas

promise

→ prometer
promet to promise + as 2nd-person singular present subjunctive
verb · second singular · present subjunctive Rare #46,070
promise Subjunctive form, typically used with “you” (informal singular) or in commands such as “no prometas” (“don't promise”).
SP: Espero que no prometas cosas que no puedes cumplir.
EN: I hope you don't promise things you can't keep.
Conjugation of prometer
Subjunctive present
SingularPlural
First prometo prometemos
Second prometas —
Third promete —

Quiero que me prometas que no lo harás nunca.

I want you to promise me that you’ll never do it.

Mientras prometas que vas a venir.

As long as you promise to come.

— Elephant (2003)

Puedes venir a visitarme, siempre y cuando me prometas que te vas a portar bien.

You can come visit me, as long as you promise to behave.

No prometas nada.

Don't promise anything.

— O Auto da Compadecida (2000)