you could have
T'aurais pu sauver ta sœur avec cet argent !
You could have saved your sister with that money!
— Sympathy for Mister Vengeance (2002)
Non, t'aurais pu en faire beaucoup moins.
No, you could have done a lot less.
— Insaisissables 2 (2016)
You could have called.
Well, you could have warned me.