modal verbs unit 9
DESCRIPTION
modal + infinitive modal + have + past participleTRANSCRIPT
Modal Perfects• express speculations, conclusions or suppositions about past events.
• can be used in passive voice, using "BEEN" between "have" and "past participle" They must have delivered that package last night after I left. That package must have been delivered last night after I left.
• COULD HAVE + PAST PARTICIPLE (possibility / opportunity not done)I could have sent a car, but I was too busy.(I didn´t do it)
• COULDN´T HAVE + PAST PARTICIPLE (disbelief)She couldn´t have said those words. She never speaks like that.(I can´t believe it)
• MAY / MIGHT HAVE + PAST PARTICIPLE (guess)She may/ might have forgotten about the meeting.(Perhaps she forgot about the meeting).
• MUST HAVE + PAST PARTICIPLE (logical conclusion)Peter didn´t come to school. He must have been ill.
• SHOULD HAVE + PAST PARTICIPLE (criticism)You should have seen a dentist.Now you probably need extensive treatment.
• SHOULDN´T HAVE + PAST PARTICIPLE (criticism)He shouldn´t have been so rude.
• Write the following sentences using the modal perfects:
1. They might sell the car.2. It could be Jenny on the phone.3. You shouldn´t use my computer.4. She must be tired.5. This should be taken away.6. They may come later.
• Rewrite the following sentences without changing the meaning of the original sentence.Use modals.
1. Taking the book without permission was the wrong thing to do ._________________________________________________________________
2. He isn´t here. Perhaps he went home.__________________________________________________________________
3. I didn´´t try to pass the test, although it wasn´t difficult._____________________________________________________, but I didn´t try.
4. I suppose he bought you a birthday gift.______________________________________________________________
5. Chewing gum is forbidden in class (chew)_____________________________________________
6. I suggest you get a second opinion.______________________________________________
7. Perhaps John is at school now. (be) ______________________________________________
