I MAY/MUST have been really tired because I fell asleep at once.
MUST
A strange sound woke me up towards the morning, it MIGHT/MUST have been about 5.00 but it CAN'T/MUSTN'T have been much later because it was still pitch dark outside.
MIGHT/CAN'T
I don't think he'll have time to call in and see us. He has a very tight schedule. (probably)
He probably won't have time.....
I was half-asleep and I thought ‘I must DREAM/BE DREAMING
BE DREAMING
He CAN'T/MUSN'T be married. He's only 17.
CAN'T
The company director probably won't resign, despite the disastrous sales figures. (unlikely)
The company director is unlikely to resign....
The traffic is heavy today, so they’re sure be late for the meeting.
The traffic is heavy today, so they’re sure TO be late for the meeting.
The company is unlikely be in a position to make a profit this year.
The company is unlikely TO be in a position to make a profit this year.
It’s very that you’ll win anything. I’d say there’s only a two per cent chance.
It’s very UNLIKELY that you’ll win anything. I’d say there’s only a two per cent chance.
Medical experts say that the disease likely to spread all over the world.
Medical experts say that the disease IS likely to spread all over the world.
Are you sure you locked the back door? (definitely)
Did you definitely lock...?
I MIGHT/SHOULD have phoned the police but I thought there was sure BEING/TO BE some simple explanation.
SHOULD/TO BE
I'm not sure she'll ever get over the break-up. (may)
She may never get over....
Perhaps Luke has got lost. He has no sense of direction. (might)
Luke might have got lost. He has no sense of direction.
According to press reports, the couple will probably get divorced soon. (likely)
According to press reports, the couple are likely to get divorced soon.
You MUST/MIGHT be Denis. Nice to meet you.
MUST
I recognise your face, we SHOULD/MUST have met before
MUST
They will probably have heard the news by now. (ought)
They ought to have heard the news....
I'm sure your sister will like the scarf - it's just her style. (bound)
Your sister is bound to like....
I didn't leave my credit card in the restaurant. I remember putting it in my wallet. (can't)
I can't have left....
I'm sure he was in love with her, otherwise he wouldn't have married her. (must)
He must have been in love with her...
If Sophie doesn’t get to the gate in the next ten minutes, she definitely miss the flight.
If Sophie doesn’t get to the gate in the next ten minutes, she definitely WILL/'LL miss the flight.
If we play as badly as we did last week, we bound to lose in the semi-final.
If we play as badly as we did last week, we ARE/'RE bound to lose in the semi-final.
Without an experienced guide, you probably be able to get to the top of the mountain.
Without an experienced guide, you probably WON'T be able to get to the top of the mountain.
With her presentation skills, she’s bound to able to convince the company to choose her proposal.
With her presentation skills, she’s bound to BE able to convince the company to choose her proposal.
There's no milk in the fridge someone MUST/MAY have drunk it.
MUST