my baby boy is two years ten months active boy. he is speaking meaningful words n sentences too but not everything like we talk. still he doesn't understand everything n repeating everything what I say to him. please suggest what to do so that he can start talking properly?? Second thing is he listens my words most of the time but he doesn't respond immediately most of the time. for instance if I say him not to do something again and again but he do that things only as he knows to not to do. how can I motivate him?? Is it ok to beat him once??