que tu ne saches pas

that you don't know

→ que
phrase Rare #37,073
that you don't know Subjunctive form of savoir used after que.
FR: Je te le dis pour que tu ne saches pas trop tard.
EN: I'm telling you so that you don't find out too late.

Comment ça se fait que tu ne saches pas?

How come you don't know?

— Troupe d'Élite (2007)

Comment est-il possible que tu ne saches pas?

How is it possible that you don't know?

Parfois, c'est mieux que tu ne saches pas.

Sometimes it's better that you don't know.

C'est mieux que tu ne saches pas.

It's better that you don't know.