This is an all-class mixer activity for reviewing the conjugation of ER verbs in the passé composé. Print on cardstock and cut into cards. Includes positive, negative, questions with est-ce que, questions with inversion, negative questions with est-ce que and negative questions with inversion. Pick and choose which cards you want to use. Students find a partner. Partner A asks his question; B responds. B asks his question and A responds. Students exchange cards and then move on to find new partners. Perfect review activity for right before a test on the conjugation of ER verbs in the passé composé.