French Conditional Perfect – Past Conditional
The French conditional perfect, or past conditional, is usually used just like the English conditional perfect: to express action that would have occurred if in the past circumstances had been different.
Si je l’avais vu, je l’aurais acheté.
If I had seen it, I would have bought it.
Il serait venu si nous l’avions invité.
He would have come if we had invited him.
The conditional perfect can also be used in a sentence where the unmet condition is only implied:
À ta place, je l’aurais dit.
In your place, I would have said it.
Elles auraient dû acheter un plan.
They should have bought a map.
Use the conditional perfect to express an unrealized desire in the past:
J’aurais aimé te voir, mais j’ai dû travailler.
I would have liked to see you, but I had to work.
Nous aurions voulu manger, mais c’était trop tard.
We would have liked to eat, but it was too late.