you would have
Tu l'aurais peut-être su dès qu'elle a parlé d'assurance accident, mais moi non.
You might have known as soon as she mentioned accident insurance, but I didn't.
— Assurance sur la mort (1944)
Je m'en doute, sinon tu l'aurais déjà fait.
I figured as much; otherwise, you would have done it already.
— Tout sur ma mère (1999)
You would have done it for me.
Il m'a dit de ne pas te le dire, mais tu l'aurais su.
He told me not to tell you, but you would have found out.
— Article 15 (2019)