Must vs. Have To | English Speaking Lessons

Must can be used in affirmative sentences to say that something is necessary. This is common in British English.

In American English, have to is more common.

Must can also be used to ask if something is necessary.

In American English, have to is preferred.

In British English, must not can be used to prohibit people from doing things.

To say that things are unnecessary, we usually use ‘do not have to’ or ‘do not need to’.

To talk about past necessity, we can use had to.