THIRD LESSON

GRAMMAR
Must, may, might, can't (deduction)

• You use must when you are sure something is true.

They must be out. There aren't any lights on.
She must have a lot of money. She drives a Porsche.

• You use migh/may when you think something is possibly true.

His phone's switched off. He might be on the plane now.
She 's not at home. She may be working.

• You use can't when you are sure something is impossible or not true.

He can't be ill. I saw him at the gym.
They can't be Italian. They're speaking to each other in Spanish.



EXERCISE.
Complete the sentences with must, might/may or can't. (Workbook, pag. 29)


- They must be very happy, they've just won the lottery.

- She can't be the new boss, she's too young.

- It may be a Roman plate, but I'm not sure.

- That can't be the same man, he looks completely different.

- Look. He must be the doctor. Open the door.

- I don't Know where Jim is. He might be at gym. He sometimes goes there after work.



Complete the sentences with must, might/may or can't and a verb from the list. (Workbook, pag. 29)


- You've been at the gym all morning. You must be tired!

- It may rain today. Those clouds are quite dark.

- She can't have four children, she's only twenty!

- Jane failed her exams. She must feel awful!

- I'm not sure where Juana is from. But from her accent I think she may come from Peru.

- John's in hospital? That can't be true. I saw him this morning and he was fine.