Lesson 128 He can't have been.../ He must have been...
B Examples
1. I don't think so. She can't be Italian. She must be Greek.
2. I don't think so. He can't be English. He must be American.
3. I don't think so. They can't be Canadian. They must be Australian.
7. I don't think so. He can't be twenty-four. He must be thirty.
15. I don't think so. It can't be easy. It must be difficult.
18. I don't think so. He can't be reading. He must be sleeping.
19. I don't think so. They can't be listening to the radio. They must be watching television.
20. I don't think so. She can't be retiring. She must be looking for a new job.
Lesson 130 He can't have been …/He must have been …
He can't have been ill.
He must have been tired.
It can't have been my new hat.
It must have been my old one.
She can't have been Danish.
She must have been Swedish.
He can't have been a dentist.
He must have been a doctor.
She can't have been forty.
She must have been fifty.
It can't have been the 20th.
It must have been the 21st.
He can't have been the youngest.
He must have been the oldest.
He can't have been reading.
He must have been sleeping.
Exercises