you'll know

You'll know the devil if I catch up with you!

Tu vas voir le diable si je te rattrape !

— The Lord of the Rings: The Fellowship of the Ring (2001)

After four questions, you'll know.

Après quatre questions, vous saurez.

— Manon of the Spring (1986)

By then you'll know how.

D’ici là, tu sauras comment faire.

— Die Hard (1988)

The more books you read, the more you'll know.

Plus vous lirez de livres, plus vous en saurez.

You'll know when it happens.

Tu le sauras quand ça arrivera.

— Jojo Rabbit (2019)

You'll know very soon what parents.

Vous saurez très bientôt ce que sont les parents.

— Mirror (1975)

And if it doesn't work, at least you'll know.

Et si ça ne marche pas, au moins tu le sauras.

— Taxi (1998)

In the morning, you'll know it by heart!

Demain matin, tu le sauras par cœur !

— Day for Night (1973)

Look at his pig face you'll know that he had lost.

À voir sa tête de cochon, tu comprendras qu’il a perdu.

— Ip Man (2008)

You'll know soon enough.

Tu le sauras bien assez tôt.