dis moi quelque chose que je sais : tell me something I know
Je ne sais pas
that's a French sentence needing some improvement. je t'aime Kane, tu ne sais pas à quel point = I love you Kane, you don't know how much
Je sais means 'I know'.
No sais means know
to know je sais tu sais i know you know
Je sais
You can say "Je sais tout" in French, which translates to "I know everything."
'tu ne sais pas' means 'you don't know' in French. It can be said in an interrogative way (don't you know?). The form 'tu sais pas' exists in familiar, spoken language, but is not grammatically correct.
"Do you know?" is a literal English equivalent of the French present indicative question Sais-tu? The pronunciation will be "seh-tyoo" in French.
Je sais que tu me veux
Je sais que vous le savez.
"Tu sais pas" means "You do not know" in English.