| USES | MODAL VERBS | EXAMPLES |
| Ability | CAN | Anne can speak four languages. |
| BE ABLE TO | Mark is able to sing very well. |
| Past ability | COULD | Cliff could swim very fast when he was a child. |
| Request | CAN | Can you explain me this activity? I don’t understand it. |
| Polite request | COULD | Could you help me with the suitcase, please? |
| MAY | May I go to the toilet, please? |
| Formal request | WOULD | Would you open the window, please? |
| Possibility | CAN | A tennis match can be interesting to see. |
| COULD | It could be funny to have a party. |
| MAY | It may rain tomorrow. |
| MIGHT | She might win the gold medal in the Olympics. |
| Certainty that something is true | MUST | He’s failed his exams. He must be very sad. |
| Certainty that something is impossible | CAN`T | You can’t be 40 years old, you look much younger! |
| Polite suggestion | COULD | You could be silent in class and study harder. |
| Offer | WOULD | Would you like something to drink? |
| Obligation | MUST | You must study hard for the exams. |
| Obligation, necessity | HAVE TO | I have to buy the tickets today. |
| NEED TO | You need to practise harder. |
| Lack of obligation | NEEDN’T | You needn’t bring anything to the party. |
| DON’T HAVE TO | I don’t have to get up early tomorrow. |
| Prohibition | MUSTN’T | You mustn’t wear jeans in the swimming-pool. |
| Advice / opinion | SHOULD | You should try and get on well with your aunt. |
| OUGHT TO | You ought to warm up before training. |
| USES | MODAL VERBS | EXAMPLES |
| Ability to have done something, but in fact did not | COULD HAVE | You could have asked the doctor before taking the medicine. |
| A guess about a past action | MAY / MIGHT HAVE | She may / might have taken the wrong bus. |
| Certainty that something was true | MUST HAVE | Linda has arrived late. She must have been in a traffic jam. |
| Certainty that something did not happen | COULDN’T HAVE | He couldn’t have gone to the concert because he was doing a test. |
| Willingness to have done something, but in fact could not | WOULD HAVE | I would have gone to the party, but I was too busy. |
| Criticism or regret after an event | SHOULD / OUGHT TO HAVE | You should / ought to have warned me earlier. |
| Criticism after an event | SHOULDN’T HAVE | He shouldn’t have forgotten about her birthday. |
| An unnecessary action in the past | NEEDN’T HAVE | You needn’t have brought anything to the party. |
1.- Complete the sentences with the modals below. (...../8)
shouldn’t ■ mustn’t ■ might ■ ought to ■ must ■ could ■ can’t ■ have to
That ................................………… be Mary. She’s away on holiday. But that girl really resembles her.
Remember – you ................................………… use your mobile phone on the plane. It’s not allowed.
................................………… I have a glass of water, please?
In my opinion, she ................................………… leave her job. She hates it.
We ................................………… give the dog so much food. I think he’s getting a bit fat.
They ................................…………share a flat again next year but they’re still not certain.
She was glad that she didn’t ................................………… do all the work on her own.
You ................................………… be so hungry! Otherwise, you wouldn’t be eating these disgusting chips!
| 1. can’t | 2. mustn’t | 3. Could | 4. ought to |
| 5. shouldn’t | 6. might | 7. have to | 8. must |
2.- Rewrite the sentences using the words in brackets. Do not change the original meaning of the sentences. (...../8)
There’s a possibility that Tom will be in London tomorrow. (might)
................................................................................................................................................
2. Is it possible for me to borrow this book? (could)
................................................................................................................................................
3. She is undoubtedly a great football player, because three teams want to sign her. (must)
................................................................................................................................................
4. It would be a good idea for you to go to bed early tonight. (should)
................................................................................................................................................
5. It’s impossible for me to buy a moped this year. (can’t)
................................................................................................................................................
6. Is it necessary for you to go to the meeting today? (need to)
................................................................................................................................................
7. He isn’t obligated to tell Miranda where he was last night. (not have to)
................................................................................................................................................
8. Are we required to wear school uniforms? (have to)
................................................................................................................................................
| 1. Tom might be in London tomorrow. |
| 2. Could I borrow this book? |
| 3. She must be a great football player because three teams want to sign her. |
| 4. You should go to bed early tonight. |
| 5. I can’t buy a moped this year. |
| 6. Do you need to go to the meeting today? |
| 7. He doesn’t have to tell Miranda where he was last night. |
| 8. Do we have to wear school uniforms? |
3.- Choose the correct answer. (...../12)
I ... run a long way when I was younger.
a. could b. can
I ... speak Chinese, but I can’t write it.
a. could b. am able to
Don’t touch that. It ... be dangerous.
a. might b. ought to
Joe ... be at least 45.
a. is able to b. must
I haven’t phoned my parents for a while. I ... phone them tonight.
a. must b. am able to
I’m afraid you ... go out until you have finished your homework.
a. might b. can’t
You ... get up early this morning. It’s Sunday.
a. didn’t need to b. could
... you close the window, please? It’s freezing!
a. Should b. Could
Your sister smokes too much, she ... give up smoking.
a. ought to b. might
... I have another piece of cake, Dad? It’s delicious!
a. Must b. May
You ... smoke in the cinema.
a. needn’t b. mustn’t
... I have a word with you? There’s something important you should know.
a. Might b. Should
| 1. a | 2. b | 3. a | 4. b | 5. a | 6. b |
| 7. a | 8. b | 9. a | 10. b | 11. b | 12. a |
4.- Fill in the blanks with the suitable modal verb. There may be more than one possible answer. (...../15)
A: “.................................. turn that stereo on, please?” B: “I’m sorry, but I “.................................. hear you.”
A: “.................................. I stop smoking, doctor?” B: “If you don’t stop, you “.................................. die.”
That job is only open to university graduates. You .................................. have at least a bachelor’s degree to apply.
I can stay in bed tomorrow because I .................................. work.
A: “.................................. I borrow your car this weekend?” B: “No, because I .................................. need it if I go shopping.”
He doesn’t sing very well now, but he .................................. sing beautifully when he was a child.
A: “.................................. I help you, madam?” B: “Yes, it is my daughter’s birthday and I .................................. find a present.”
It .................................. rain, but I doubt it.
Whatever you do, you .................................. press that button.
A: “I .................................. write English very well, but I have trouble speaking.” B: “You .................................. find yourself an English girlfriend... That way, you’ll improve quick enough.”
| 1. can, could – can’t | 2. should – can, could, may, might | 3. have to |
| 4. don’t have to | 5. can, could, may – can, could, may, might | 6. could |
| 7. could, may – have to, need to | 8. can, could, may, might | 9. mustn’t |
| 10. can - should | |
5 .- Choose the correct answer. (...../5)
1. You broke my necklace! You … been more careful!
a. should have b. must have
2. It’s beautiful. You … given me a nicer present.
a. wouldn’t have b. couldn’t have
3. I think James … got lost. He’s never late.
a. might have b. should have
4. I … bought milk, but I didn’t know we needed more.
a. may have b. would have
5. You ... forgotten my birthday.
a. can’t have b. should have
6.- Complete the sentences using a suitable modal perfect and the correct form of the verb in brackets. There may be more than one possible answer. (...../9)
It was wrong of Glen to be so rude. He ......................................... (not behave) that way.
Maggie ......................................... (write) sooner, but she didn’t find an Internet café until yesterday.
I can’t remember for sure, but I ......................................... (not lock) the front door.
Something ......................................... (happen) to Steve. He always calls when he’s late.
I left my bicycle here and now it is gone. Someone ......................................... (steal) it.
I bought two bottles of milk. You ......................................... (buy) milk; we have lots in the fridge.
He was driving very fast. He ......................................... (have) an accident driving in such heavy fog.
He got into an accident. He ......................................... (be) driving too fast. He knew he ......................................... (be) more careful.
| 1. shouldn’t have behaved | 2. would have written |
| 3. may / might not have locked | 4. must have happened |
| 5. must have stolen | 6. needn’t have bought |
| 7. could have had | 8. must have been - should have been |
7.- Complete the passages using the modals and modal perfects below and the correct form of the verb in brackets. Use each modal or modal perfect once only. (...../8)
Teens in the News can ■ could ■ couldn’t have
I (1) .................... you .................... (use) some assistance organising your desk, your cupboard and your room? Tidy Teens (2) ................................... (help). This student-run group raises money for charity by cleaning up. "We didn’t realise it when we started, but we (3) ................................... (think) of a better way to raise money," says 17-year-old Brian Mason, who helped establish the group.
must have ■ be able to ■ shouldn’t have ■ should have ■ have to
II Carol Dahl (4) ................................... (think) she was dreaming when she heard that she’d won the national secondary-school essay contest. “I didn’t believe it,” she explains. “I just laughed at first, which I probably (5) ................................... (do).” The prize, a cheque for £1,000, will be awarded to Carol at a ceremony in March. “I (6) ................................... (guess) that there would be a price to pay for the award – and there is. I (7) ................................... (write) a speech to give at the ceremony,” Carol says. “I’m pretty nervous but I hope I (8) ................................... (do) a good job.”
| 1. Could … use | 2. can help | 3. couldn’t have thought | 4. must have thought |
| 5. shouldn’t have done | 6. should have guessed | 7. have to write | 8. will be able to do |