The perfect tense may be expressed in three ways in English, but only one way in French.
English French
I worked
I have worked J’ai travaillé
I did work
In French you must follow the formula:
Person/Subject + present tense of "avoir"/"être" + past participle
Most verbs use "avoir" in the perfect tense
j’ai nous avons
tu as vous avez
il/elle a ils/elles ont
Past Participles
In English the past participle is that part of the verb which follows "I have ….". For regular verbs the past participle will normally end in "ed", e.g. "I have listened", but irregular verbs have to be learned separately, e.g. "I have forgotten".
In French the past participle of regular verbs is formed by altering the infinitive.
Infinitives ending in "er" – remove the "er" and add "é", e.g. regardé, écouté
Infinitives ending in "re" – remove the "re" and add "u", e.g. vendu, attendu
Infinitives ending in "ir" – remove the "ir" and add "i", e.g. fini, choisi
Don’t forget you need the correct part of "avoir" before the past participle!
Examples of regular verbs
j’ai regardé j’ai vendu j’ai fini
tu as regardé tu as vendu tu as fini
il a regardé il a vendu il a fini
nous avons regardé nous avons vendu nous avons fini
vous avez regardé vous avez vendu vous avez fini
elles ont regardé elles ont vendu elles ont fini
Past participles of irregular verbs must be learned separately – see verb sheets.
About 18 verbs (listed below) use "être" instead of "avoir". The structure remains the same, apart from the use of "être" instead of "avoir"
e.g. je suis allé(e) N.B. If the verb takes "être", the past
tu es allé(e) participle must agree with the
il est allé gender and number of the subject
elle est allée i.e. add an "e" if the person is feminine,
nous sommes allé(e)s and an "s" if the person is plural.
vous êtes allé(e)(s)(es)
ils sont allés
elles sont allées
Verbs taking etre
aller (allé) to go
arriver (arrivé) to arrive/happen/manage
descendre (descendu)* to go down/take down
devenir (devenu) to become
entrer (entré) to enter
monter (monté)* to go up/take up
mourir (mort) to die
naître (né) to be born
partir (parti) to leave
parvenir (parvenu) to succeed/manage
passer (passé)* to pass/go/sit (exam)
rentrer (rentré)* to return (home)/to take in
rester (resté) to stay
retourner (retourné)* to return
revenir (revenu) to return/go back
sortir (sorti) to go out
tomber (tombé) to fall
venir (venu) to come
Remember the past participles of these verbs (and all their derivatives) must agree with the subject in the perfect tense.
Verbs marked * will take "avoir" instead of "être" if they are followed by a direct object, e.g. "Je suis descendu à sept heures." but "J’ai descendu l’escalier.".
Reflexive verbs in the perfect tense
All reflexives follow this pattern:
Person/Subject + reflexive + part of "être" + past participle
e.g. je me suis lavé(e) nous nous sommes lavé(e)s
tu t’es lavé(e) vous vous êtes lavé(e)(s)(es)
il s’est lavé elles se sont lavées