To form the perfect tense you need a subject, an auxiliary verb and a past participle. Perfect tense with 'être' in French The perfect tense is used to say what you did or have done in the past.

The perfect tense is made up of two parts. The first part is often the verb avoir ‎- ‎to have and the second part is the past participle.‎ For example, j'ai mangé un sandwich - I have eaten ...