I would never have … it
Je ne l'aurais jamais cru capable de ça.
I never would have thought he was capable of that.
— Mon cœur est déjà pris (1999)
I would never have done it.
Si je ne les avais pas trouvées, je ne l'aurais jamais su ?
If I hadn’t found them, I would never have known?
— Shutter (2004)
I never would have guessed.