Conditionnel passé
The conditionnel passé corresponds to the English structure would have + past participle. We use it to look back on past situations and express alternative outcomes. To conjugate the conditionnel passé we use the conditional form of avoir/être followed by the participe passé of the verb.
In negative sentences
☞ Je n’aurais pas vécu à Paris.
For reflexive verbs
☞ Je me serais levé à 8 heures.