Must and have to

Front

What is the difference between 'must' and 'have to'?

Back

'Must' is used to express necessity or obligation that comes from the speaker, while 'have to' indicates an obligation that comes from an external source.

Front

When do we use 'mustn't'?

Back

'Mustn't' is used to indicate prohibition or something that is not allowed.

Front

Provide an example of a sentence using 'has to'.

Back

She has to finish her homework before going out.

Front

What does 'must' imply in a sentence?

Back

'Must' implies a strong obligation or necessity.

Front

Can 'have to' be used in the past tense? Provide an example.

Back

Yes, 'have to' can be used in the past tense. Example: I had to leave early yesterday.

Front

What is the negative form of 'have to'?

Back

The negative form of 'have to' is 'don't have to', which indicates that there is no obligation.

Front

How do you form a question with 'have to'?

Back

To form a question with 'have to', invert the subject and 'have'. Example: Do you have to work tomorrow?

Front

What is an example of a situation where you would use 'must'?

Back

You must wear a seatbelt while driving.

Front

Is 'must' used for personal opinions?

Back

Yes, 'must' can express a personal opinion or belief about what is necessary.

Front

What is the structure of a sentence using 'mustn't'?

Back

The structure is: Subject + mustn't + base form of the verb. Example: You mustn't smoke here.