would have said, would have told
Un giapponese non avrebbe detto una cosa del genere.
A Japanese person wouldn't have said such a thing.
What would he have said to them?
Tom non poteva immaginare che Mary lo avrebbe detto davvero.
Tom couldn't imagine that Mary would actually say it.
Tom ha promesso che non lo avrebbe detto a Mary.
Tom promised he wouldn't tell Mary.
Mary ha promesso che ce lo avrebbe detto.
Mary promised she would tell us.
Guarda, Micheail è stato ucciso perché non avrebbe detto il suo nome in inglese.
Look, Micheail was killed because he supposedly wouldn’t say his name in English.
— Il vento che accarezza l'erba (2006)
Non glielo hai mai chiesto altrimenti lei te l'avrebbe detto.
You never asked her about it; otherwise, she would have told you.
— Hong Kong Express (1994)
What would he have told her?