non l'avrebbe mai

would never have … it

→ non
phrase Rare #34,215
would never have … it The verb that completes the phrase comes afterward; l’ means “it” and may be translated elsewhere in the English sentence depending on the verb.
IT: Non l'avrebbe mai creduto.
EN: He would never have believed it.

Mio marito non l'avrebbe mai detto.

My husband would never have said it.

— In the mood for love (2000)

Non l'avrebbe mai sospettato nessuno!

No one would ever have suspected it!

Mi ha giurato che non l'avrebbe mai più fatto.

He swore to me that he would never do it again.

Ma non l'avrebbe mai fatta franca.

But he would never have gotten away with it.

— Paddington 2 (2017)

Non l'avrebbe mai fatto.

He/She would never have done it.

— Prova a prendermi (2002)

Il figliuolo non l'avrebbe mai riconosciuto.

The son would never have recognized him.

Se si fosse già immerso, non l'avrebbe mai capito,"Chanteclair".

If he had already dived in, he would never have understood it, “Chanteclair”.

— Wolf Call - Minaccia in alto mare (2019)