1. In no circumstance does he stop learning (Đảo ngữ vì có phủ định đứng đầu câu)
2. Were he a millionaire, he would move to the sea
(Đảo ngữ điều kiện 2:
Were S noun/adj, S would V
Were S to V, S would V)
3. Nam's friend was made to do this test yesterday
(Bị động của make: be made to V)
4. Don't let you helped by anyone
(Bị động của let: let sb PII)