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Have to must should oraciones afirmativas y negativas e interrogativas?

Have to must should oraciones afirmativas y negativas e interrogativas.

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Gonzalez5433
4

Affirmative clauses : 1° have to can be used in all tenses : Tom had to wear a uniform last year / Tom will have to wear a uniform next year Sonia is having to wait / she may have to come back tomorrow 2° must can be used to talk about the present or the future Tom must call his mother tomorrow but it can't be used to talk about the past ( you use have to)

III) Interrogative clauses : Do you have to leave now?

/ Must you leave right now?

IV) Negative clauses : The negative form of must and the negative form of have to are very different in meaning.

1° must not / mustn't is used to say that something is not allowed.

Children mustn't play with fire.

/ Passengers must not talk to the driver.

/ Visitors mustn't smoke.

'must not' can't be used to talk about the past, you use another structure.

Example : We were not allowed to park near the museum.

2° don't have to means that there is no obligation to do something, but you can do it if you want.

You don't have to drink alcohol, you can have a soft drink.

She doesn't have to arrive before 9.