The difference between FOR and TO

Talking to Brandon can sometimes be kind of complicated. He's getting much better, but we still have lots of work to do. I decided that I would try to tackle some of the problems I see regularly. He tends to use the wrong word in the wrong context at times. One I took on this week is a phrase he often uses. The phase he uses is "Mommy, can I talk for you." This week I started to correct him every time he said it. I would say it right and make him say it right. I would also try to explain that it was not right to use for the way he was. I didn't think I was making much progress until today. He was in the kitchen and I was in the living room. I hear him yell for me and he starts . . "Mommy, can I talk" and then there is a pause. I wait and finally in about a second or two that seemed like hours I hear "to you". WOW. He did it. I went in and said "you did it right, great". He was definitely proud of himself. I was pretty happy myself.