tú servirás

will be useful, will be of use, will serve (someone something), will serve as

→ servir
servir to be useful, to do + ás you future tense
verb · 2nd-person singular, future tense Rare #52,445
will be useful, will be of use
SP: Servirás para mucho más que eso.
EN: You’ll be useful for much more than that.
will serve (someone something)
SP: Me servirás la cena a las ocho.
EN: You’ll serve me dinner at eight.
will serve as
SP: Servirás de guía para el grupo.
EN: You’ll serve as a guide for the group.
Conjugation of servir
Indicative future
SingularPlural
First serviré —
Second servirás —
Third servirá servirán
Subjunctive future
SingularPlural
First serviré —
Second servirás —
Third servirá servirán

Sólo servirás para ser un vago o un vulgar aprendiz.

You'll only be good for being a lazy bum or a common apprentice.

— Los 400 golpes (1959)

Y tú, Okello, me servirás la comida en platos de oro.

And you, Okello, will serve me my food on golden plates.

— Aguirre, la ira de Dios (1972)

Tú tampoco servirás.

You won't be any good either.

— El jardín de los pecadores 5: Paradoja espiral (2008)

¡Me servirás de diana, camarada teniente!

You'll be my target, comrade lieutenant!

— Утомлённые солнцем (1994)