The passé composé is the most commonly used tense to refer to actions completed in the past. The passé composé may be translated into English in three different ways depending on the context.
Elle a mangé tout le gâteau !
She ate all the cake! She has eaten all the cake! She did eat all the cake!
FORMATION
This tense is called the passé composé because it is composed of two elements: the present tense of an auxiliary verb (either avoir or être), followed by a past participle: