tu dois savoir

Tu dois savoir.

You must know.

Tu sais tout ce que tu dois savoir.

You know everything you need to know.

Tu dois savoir quelque chose.

You must know something.

Il y a quelque chose que tu dois savoir.

There is something you need to know.

Tu dois savoir ce que tu fais.

You have to know what you're doing.

Il y a deux choses que tu dois savoir.

There are two things you need to know.

Et si cela t'arrive, tu dois savoir que ce n'est pas de la démence.

And if this happens to you, you should know that it isn’t dementia.

— Solaris (1972)

C'est tout ce que tu dois savoir.

That's all you need to know.

Tu dois savoir qui est ton époux.

You need to know who your husband is.

— Le Conformiste (1971)

Il y a des choses que tu dois savoir.

There are things you need to know.