tu saches

know

s a ʃ → savoir
sach know + es tu conjugation
verb · 2nd-person singular, present tense Rare #40,933
know Used in the subjunctive after expressions of doubt, emotion, or necessity, and after certain conjunctions.
FR: Je veux que tu saches la vérité.
EN: I want you to know the truth.
Conjugation of savoir
Subjunctive present
SingularPlural
First sache —
Second saches sachiez
Third sache sachent

Ce sera terminé avant que tu ne le saches.

It will be over before you know it.

C'est mieux que tu ne le saches pas.

It's better that you don't know.

C'est la seule chose que tu saches faire ?

Is that the only thing you know how to do?

— Avatar : De feu et de cendres (2025)

Kitty, je n'ai rien dit que tu ne saches déjà.

Kitty, I didn't say anything you don't already know.

— Oppenheimer (2023)

Comment se fait-il que tu en saches autant sur l'histoire du Japon ?

How is it that you know so much about the history of Japan?

Avant même que tu ne le saches, tu seras dans les journaux.

Before you even know it, you'll be in the newspapers.

Il vaut mieux que tu ne le saches pas.

It's better that you don't know.

Sounds similar to