Hi sweety
Do you have any children around the house that may be speaking for him? Or a playmate? Do you finish his sentences before heo is finished? I went through this with my 20 year old when she was your sons age. She began walking quite late as well. Part of her problems were the fact that she was almost 10 weeks premature. The rest was my oldest daughter speaking for her and knowing what she wanted. She did not toilet train until she was 3 1/2 which was hard. I spent hours and hours working with her on sign language and interaction games, and word games. Her therapist worked extremely hard with her as well. One she turned 5 she seemed to become a totally dif child. I'm not saying it was an over night sensation but there was progress daily. She is now a hockey player, and in college to become a child and youth worker. Don't sweat it too much, he will come around