My husband is a Canadian citizen and he is applying to sponsor me. On IMM 5532 he needs to include his addresses and work history for the last 5 years. We have the addresses and employer info. He knows the years that he lived and worked in these places. But..he can't remember the months. So when filling in the to and from fields, we are stumped. Can he provide the info he has and then attach a letter explaining that he doesn't know the exact dates? He doesn't want to just make something up. Advice pls.