you knew, you knew how to
Mais avec toi j'avais le sentiment que tu savais exactement ce que tu faisais.
But with you, I felt like you knew exactly what you were doing.
— Picnic (1955)
You knew what you were doing.
Tu savais bien que ca arriverait un jour ou l'autre.
You knew perfectly well that it would happen sooner or later.
— Paris, je t'aime (2006)
I thought you knew.
J'ignorais que tu savais jouer du trombone.
I didn't know you knew how to play the trombone.
Je n'avais pas idée que tu savais jouer au mah-jong.
I had no idea you knew how to play mahjong.
Je ne savais pas que tu savais cuisiner.
I didn’t know you knew how to cook.
J'ignorais que tu savais parler le français.
I didn’t know you could speak French.
Je me doutais que tu savais parler ma langue.
I suspected you knew how to speak my language.
— Avatar (2009)
Je n'avais pas idée que tu savais parler le français.
I had no idea you could speak French.
J'ignorais que tu savais piloter.
I didn't know you knew how to fly a plane.
— Indiana Jones et la dernière croisade (1989)
J'ignorais que tu savais conduire.
I didn't know you knew how to drive.
Je me demandais juste quelles langues tu savais parler.
I was just wondering what languages you could speak.