I don't know
Je n'en sais rien, quelle route.
I have no idea which route.
— Moscou ne croit pas aux larmes (1980)
Well, I don't know.
Mais je n'en sais rien, je ne l'ai pas baisée.
But I have no idea—I didn't fuck her.
— Rushmore (1998)
I don't know anything about it.
No, I don't know.