When do we use MUST and when do we use HAVE TO? They
have exactly the same meaning.
In the present tense you can use either. It doesn't matter. I must
telephone Bob later.
I have to telephone Bob later.
In the other tenses we use have to. We never use must.
My foot hurts. I will have to see the doctor I think.
Yesterday I had to walk three kilometres in the snow.
I had to sing in front of the whole school yesterday. I was so
I will have to buy a new coat for winter.
don't have to = no obligation
You mustn't smoke here. (=not allowed)
You mustn't drive faster than 100 kilometres per hour. (=not allowed)
You don't have to do this homework. (=you can choose)
You don't have to wash the dishes. (=you can choose)
in the missing words. Examples:
play tennis tomorrow.
clean the schoolyard now.
leave now. 2. She
ring her mother yesterday. 3. He
study hard next year. 4. We
be ready for any emergency. 5. They
go to bed at 7pm when they were young. 6.
work last weekend 7. It
wait until tomorrow. 8. She
not be late. 9. I
do some work now. 10.She
go to school tomorrow.