1. A story is being told by teacher.
2. A cake is being cut with a sharp kinfe by Mary.
3. The woman with a red hat was looked by the children.
4. The victims have been provided with food and clothing.
5. English is spoken in almost every corner of the world.
6. 30 bottles of milk are drunk by the children every month.
7. After class, The chalk board is always erased by one of the students.
- Cấu trúc câu bị động
Thì hiện tại tiếp diễn: S + tobe + being + P2. + (by O)
Thì HT đơn: S + tobe + P2 + (by O)
Thì QK đơn; S + tobe past + P2 + (by O)