My wife has been taking ESL classes at SF City College for some time now. When she is at home, doing homework, she often asks for help. I will look at her lessons and in my mind I can complete them in little time at all. I try to keep things to "this a a better word to use" and "add a comma here" etc. I often feel guilty for "cutting her off". Does anybody have this same feeling? Other than that I do my best to teach her american (GI) slang.