How do you formulate the past tense (passé composé) in French?

The passé compose is put together using this simple formula:
Subject + Etre or Avoir conjugated in the present tense + past participle
The subject is either je, tu, il/elle/on, nous, vous, ils/ellesEtre in the present tense is conjugated as : je suis, tu es, il est, nous sommes, vous etes, ils sont Avoir in the present is conjugated as: j'ai, tu as, il a, nous avons, vous avez, ils ont The past participle ending changes according to ER, IR and RE verbsER verbs : é RE verbs: u IR verbs: i
Put into practice: Ex 1: ER verbTu as mangé ton repas Tu = the subjectAvoir = conjugated to correspond correctly to our subject: "tu" Mangé = past participle of verb: manger
Ex 2: RE verb Il a entendu les nouvelles Il= subjecta- avoir conjugated to correspond correctly to our subject "il" Entendu: past participle of verb: manger
Ex 3: IR Verb: Nous avons fini nos devoirs Nous= subjectavons-avons: avoir conjugated to correspond correctly to our subject "nous"Fini= past participle of verb: finir
Some verbs use the auxiliary: Etre These can be remembered using the acronym: DRMRSVANDETRAMPP (doctor mrs van de trampp)
D devenirM: MourirR: ResterS: SortirV: VenirA: AllerN: Naitre D: Descendre E: Etre T: Tomber R: ResterA: Arriver M: MonterP: PartirP: Passer
For verbs using etre, the past participle agrees with the subject. For feminin subjects: elle or a female name : add an extra EFor plural : add an extra S For feminin and plural : ES
For example :Elle est tombée sur les escaliers Elle: subjectEst: Etre conjugated to agree with the subjectTombée: Past participle of the verb: tomber, agrees with the subject "elle"