Modal verbs in the past | Baamboozle - Baamboozle

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- I am sure Mark didn't commit this crime. - Mark .............................. (HAVE)

Mark can't / couldn't have committed this crime.

-Tom is probably at home. - Tom .................... (BE) at home now.

Tom may / might be at home now.

I think something bad …… at school yesterday. (might / happen)

might have happened

Sandra worked all the weekend to finish her assignment on time, but actually she (NEED / DO) so because her teacher gave her an extension

needn't have done

- I took my umbrella but it was not necessary after all. - I .......................... (HAVE)

I needn't have taken my umbrella.

I didn't know you were going to Phil's party yesterday. You (tell) me!

might/could have told

‘Why are there so many police cars outside?’ ‘There ….....… an accident.’ (might / be)

might have been

‘Has Pete done his homework?’ ‘He …… already. He’s only just started.’ (can’t / finish)

can't have finished

you think you lost your mobile? ‘I must ………...’

have lost my mobile

Why is Sandy crying? ‘Something horrible ………………………………’ (must / happen)

must have happened

It's possible that your mum was right. = ‘Mum could …………………………..’

have been

You’re sure someone didn’t hear you = ‘He can’t …………’

have heard me

It's so quiet in Mark's room. I'm sure he's studying now. - Mark ....................... (MUST)

Mark must be studying now. That's why it's so quiet in his room.

Nobody knows exactly why he died. But we think it .............. an accident.

might/could/may have been

You don’t believe Neil won = ‘Neil can’t …………………………….’

have won

‘Where do you think Peter is?’ ‘He ………… out with his friends.’ (could / go)

could have gone

‘Have you seen my laptop?’ ‘Your brother …… it.’ (may / borrow)

may have borrowed

‘There’s no food left!’ ‘What??!! We …………… it all!’ (can’t / eat)

can't have eaten

- I was obliged to bring my homework on Friday. - I ..................... (TO)

I had to bring my homework on Friday.

I don't have anything to wear today. I (do) the laundry before.

should have done

- It is probable that the students are having fun on a trip. - The students ................. (BE)

The students are likely to /can/ might/ may be having fun on a trip.

It was unfair of you to cheat on the test. - You ...................... (HAVE).

You shouldn't have cheated on the test.