would I have
Si je vous connaissais mieux, peut-être vous aurais-je laissées entrer.
If I knew you better, maybe I would have let you in.
What should I have done?
— Le Seigneur des anneaux : Le Retour du roi (2003)
Sinon, pourquoi t'aurais-je vendu ce terrain à côté ?
Otherwise, why would I have sold you that plot of land next door?
— The Mermaid (2016)
Comment le lui aurais-je promis puisque je suis marié.
How could I have promised him that since I'm married?
— Guerre et Paix (1968)
L'aurais-je su, je te l'aurais dit.
Had I known, I would have told you.
Si je l'avais su, aurais-je commis tout ceci ?
If I had known, would I have done all this?
— Assassination (2015)
What would I gain from it?