Page 84 - Demo

85Have ToHAVE TOAffirmative Negative QuestionI 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.I 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 (does not) 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.Do 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?We use have to + infinitive to talk about obligations, things that are necessary to do. We use bare infinitive after have to. %uf0fc I have to go home on time. %uf0fc She has to dust the furniture.%uf0d8 We use has to with the third singular subjects. Have to is used with the other subjects. %uf0fc He has to buy another ticket. %uf0fc Mary has to go on a diet.%uf0d8 We use don%u2019t / doesn%u2019t have to + bare infinitive to talk about something is not necessary to do. %uf0fc You don%u2019t have to stay at home. %uf0fc Tim doesn%u2019t have to do his homework.%uf0d8 We form questions with do / does. %uf0fc Does he have to see a dentist? %uf0fc Do you have to wear uniform at work? 1 Complete the sentences with have to or has to.1. He ___has to___ study for English test. 5. Sue __________ take photos.2. You __________ clean the windows. 6. We ___________ help him wash the car.3. The manager ____________ send e-mails. 7. I ___________ drive to work every day.4. James and Pierre _________ go to school on time. 8. Mr. Hardy _________ get up early on weekdays.2 Make the sentences negative.1. I have to answer the phone. 4. Fred has to go to the doctor.__I don%u2019t have to answer the phone__. ______________________________________.2. She has to visit her family at weekends. 5. They have to go fishing only on weekdays._________________________________. ______________________________________.3. We have to work online all day. 6. You have to buy some vegetables for dinner._________________________________. ______________________________________.UNIT 13