My question is about putting "Marie caressait son chat" into the La Voix Passive. I have read Skylar's comment and the answers to her question. I agree with Ron, that "Le chat de Marie..." resolves the ambiguity of whose cat it is. So, I wrote: "Le chat de Marie etait caressait par elle" which was marked wrong. Could someone explain why this is wrong?
Je vous remercie beaucoup !