n'aurait jamais

would never have

→ ne
phrase Rare #31,872
would never have Used with a past participle in the conditional perfect to express that someone would never have done something. Depending on the following verb, it can also occur in expressions meaning “should never have.”
FR: Elle n'aurait jamais fait ça.
EN: She would never have done that.

Il n'aurait jamais fui devant rien.

He would never have backed down from anything.

— Princesse Mononoké (1997)

Mon client n'aurait jamais être arrêté.

My client should never have been arrested.

Ce cerf n'aurait jamais croisé mon chemin.

That deer would never have crossed my path.

— L'Accusé (2017)

Il n'aurait jamais pu passer les rats.

He could never have gotten past the rats.

— Indiana Jones et la dernière croisade (1989)

Elle n'aurait jamais fait ça.

She would never have done that.

Tom n'aurait jamais être arrêté.

Tom should never have been arrested.

Et elle n'aurait jamais été assassinée.

And she would never have been murdered.

— Mystic River (2003)

Tom n'aurait jamais être pardonné.

Tom should never have been forgiven.

Sans ton aide, on n'aurait jamais fini à temps.

Without your help, we would never have finished on time.