t'en auras

you'll have some

→ te
phrase Rare #35,413
you'll have some The pronoun « en » refers to something already mentioned or understood, often meaning “some” or “of it.” « T' » is the informal « tu » (“you”). The full phrase can mean “you'll need it” in « t'en auras besoin ».
FR: T'en auras besoin demain.
EN: You'll need it tomorrow.

T'en auras besoin pour te payer un avocat.

You’ll need it to pay for a lawyer.

— Men in Black (1997)

Comme ça, t'en auras plus.

That way, you’ll have more.

— Une grande fille (2019)

Quand t'en auras assez, mets-moi dehors.

When you've had enough of me, kick me out.

— Volver (2006)

T'en auras besoin.

You'll need it.

T'en auras un autre l'année prochaine.

You'll have another one next year.

— Le Cercle des poètes disparus (1989)

Ben, t'en auras jamais.

Well, you'll never get any.

— Pierrot le Fou (1965)

Si tu continues comme ça, t'en auras plus pour longtemps.

If you keep this up, you won’t be around much longer.

— Le Salaire de la peur (1953)

Au moins t'en auras le cœur net.

At least you'll know for sure.

— Maman, j'ai raté l'avion ! (1990)

Bon, t'en auras au dessert.

Well, you'll have some for dessert.

— Souvenirs de Marnie (2014)

T'en as pas et t'en auras jamais !

You don't have any, and you never will!

— Léviathan (2014)