we don't … of it/them
Si je dois te redire d'arrêter, on n'en a pas terminé !
If I have to tell you to stop again, we’re not done yet!
— Reservoir Dogs (1992)
À cause de Mayugoro, on n'en a aucune idée.
Because of Mayugoro, we have no idea.
— Your Name. (2016)
On n'en trouve plus au marché noir.
You can't find any on the black market anymore.
— Lust, Caution (2007)
On n'en a aucune idée, pas vrai ?
We have no idea, do we?