should have
Tom n'a pas aidé Marie autant qu'il aurait dû.
Tom didn't help Marie as much as he should have.
Lui offrir l'expérience humaine qu'il aurait dû vivre.
To give him the human experience he should have had.
— Good Luck, Have Fun, Don't Die (2026)
Il aurait dû aller voir son vieil ami.
He should have gone to see his old friend.
He should have given it back to us.
Il aurait dû le faire depuis longtemps.
He should have done it a long time ago.