Срочно нужна помощь,дам 20 баллов

1. The patient is regularly examined.
2. The patient was regularly examined.
3.The patient is examined now.
4. Yesterday at two o’clock the patient was examined.
5.When we come,he examined the patient.
6. He regularly examines the patient.
7. He regularly examined the patient.
8.He examined the patient now.
9.They were discussing a plan at that time.
10. Plan was being discussed at that time.
11.Plan Now discuss.
12. They are discussing a plan now.