tu aurais pu
You could have said "fuck" and then we'd have been in real trouble.
Tu aurais pu dire « merde », et là, on aurait eu de gros ennuis.
— Love Actually (2003)
You could have saved me a lot of trouble if you'd told me about that earlier.
Tu aurais pu m’éviter bien des ennuis si tu m’en avais parlé plus tôt.
You could have killed somebody.
Tu aurais pu tuer quelqu’un.
If you'd been a little more patient, you could have succeeded.
Si tu avais été un peu plus patient, tu aurais pu réussir.