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                                        HAVE TOWe use have to + infinitive to talk about obligations, things that are necessary to do. We use bare infinitiveafter have to.I have to go home on time.She has to dust the furniture.%u2022%u2022We use has to with the third singular subjects. Have to is used with the other subjects.He has to buy another ticket.Mary has to go on a diet.%u2022%u2022We use don%u2019t / doesn%u2019t have to + bare infinitive to talk about something is not necessary to do.You don%u2019t have to stay at home.Tim doesn%u2019t have to do his homework.%u2022%u2022We form questions with do / does.Does he have to see a dentist?Do you have to wear uniform at work?%u2022%u2022AffirmativeI have to do.You have to do.He has to do.She has to do.It has to do.We have to do.You have to do.They have to do.QuestionsDo I have to do?Do you have to do?Does he have to do?Does she have to do?Does it have to do?Do we have to do?Do you have to do?Do they have to do?NegativeI do not (don%u2019t) have to do.You do not (don%u2019t) have to do.He does not (doesn%u2019t) have to do.She does not (doesn%u2019t) have to do.It does not (doesn%u2019t) have to do.We do not (don%u2019t) have to do.You do not (don%u2019t) have to do.They do not (don%u2019t) have to do.1151 Complete the sentences with have to or has to.Sue ................................. take photos.We ................................. help him wash the car.I ................................. drive to work every day.Mr. Hardy ................................. get up early on weekdays.5.6.7.8.He ................................. study for English test.You ................................. clean the windows.The manager ................................. send e-mails.James and Pierre ................................. go to school on time.1.2.3.4.has to2 Make the sentences negative.Fred has to go to the doctor........................................................................................................................4.They have to go fishing only on weekdays........................................................................................................................5.You have to buy some vegetables for dinner........................................................................................................................6.I have to answer the phone........................................................................................................................1.She has to visit her family at weekends........................................................................................................................2.We have to work online all day........................................................................................................................3.I don%u2019t have to answer the phone.

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