FORM CHUNG CỦA 3 CÂU:
S1 + V + O1 => S2 + HAVE/GET + O1 + P2 (+ BY SOMEONE)
* have/get vẫn phải chia theo thì *
1. I had/got my hair cut by my mother yesterday.
2. He is going to having/getting his roof replaced.
3. We will have/get our exercises corrected by the teacher tomorrow.