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must, have to, need - Coggle Diagram
must, have to, need
what do they express
Must is used to
- express something that is logically expected to be true
Emily must have a problem - she keeps crying.
- give strong advice and orders
Plants must get enough light and water if they are to grow well.
- form emphatic invitations
You really must come and see us soon.
Have to is used to
- express something that is logically expected to be true
There’s the doorbell. It has to be George
- talk about obligation:
Sorry, I've got to go now.
Do you often have to travel on business?
- future obligations
arranged have to
I’ve got to go for a job interview tomorrow.
not arranged will have to
When you leave school you’ll have to fin d a job.
Must vs Have to
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Speaker must
I must do some more work; I want to pass my exam
You really must go to church next Sunday - you haven't been for ages.
External obligation, rule, law have to
In my job I have to work from nine to five.
Catholics have to go to church on Sundays.
Note: AmE uses have to in both cases, must is rare!
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