Grammar reference and practice 7.1

7.1 ■ have to and should

have to and don't have to

Affirmative and negative
I We You They	have to don't (= do not) have to			work.
He She It	has to doesn't (= does not) have to
Questions and short answers
Do	I we you they	have to	work?	Yes, I do. No, I don't.
Does	he she it			Yes, he does. No, he doesn't

Use

• ■In affirmative sentences, we use have to to show that it is necessary to do something.

  We have to tidy our rooms on Saturday mornings.

  He has to wear black shoes at school.

  ■We use don't have to when it isn't necessary for someone to do something.

  You don't have to pay for this course. It's free.

  She doesn't have to get up early at the weekend. She can stay in bed until 10.

  ■We use the question form Do I / you / we / they have to … ? or Does he / she / it have to … ? to ask if it is necessary to do something.

  Do we have to buy the tickets now?

  Does he have to take the test?

1Write sentences with the correct form of have to. 

You need to use normal letters and capital letters correctly in this task. You also need to use correct punctuation.

• 1She / not / sweep the floor.

• 2They / empty the bins / after breakfast.

• 3you / do your homework / on Friday night?

• 4We / make our beds / in the morning.

• 5My friends / not / wear / school uniform.

• 6Julie and I / walk / home every afternoon.

• 7I / not / go to school / at the weekend.

• 8My dog / sleep / in the kitchen.

2Study the chart and complete the sentences with has to / have to and doesn’t have to / don’t have to. 

You need to use normal letters and capital letters correctly in this task.

What are the rules at Joe's school and at Sue and Kate's school? Do they have to …

	Joe	Sue & Kate
wear school uniform?	✔	✔
do homework every night?	✘	✔
be at school before 8.30 a.m.?	✘	✔
eat lunch at school?	✔	✘
tidy the classroom every day?	✘	✘

• 1Joe  school uniform.

• 2Sue and Kate  school uniform.

• 3Joe  homework every night.

• 4Sue and Kate  homework every night.

• 5Joe  at school before 8.30 a.m.

• 6Sue and Kate  at school before 8.30 a.m.

• 7Joe  lunch at school.

• 8Sue and Kate  lunch at school.

• 9Joe  his classroom every day.

• 10Sue and Kate  their classroom every day.

7.1 ■ have to and should

should and shouldn't

Affirmative and negative
I You He / She / It We They	should shouldn't (= should not)		sit on this sofa.
Questions and short answers
Should	I you he / she / it we they	sit on this sofa?	Yes, you should. No, you shouldn't.

Form

• ■Should is used with an infinitive without to.

  ■The forms of should are the same for all persons.

  ■There is no auxiliary do in questions or negatives.

Use

• ■We use should to give advice, or when the speaker feels that it is important for someone to do something.

  You should always wear a helmet when you ride a bike.

  We should send an email to our cousin.

  ■We use shouldn't to give advice, or when the speaker feels that it is important for someone not to do something.

  You shouldn't worry so much!

  He shouldn't shout at his little sister.

3Complete the sentences with should or shouldn’t. 

• 1You shouldshouldn't wear a coat – it's cold outside.

• 2We shouldshouldn't take the train. It's very expensive. We shouldshouldn't go by bus.

• 3Suzie's bike is really dirty. She shouldshouldn't clean it.

• 4Your mother isn't well at the moment. You shouldshouldn't help her with the housework.

• 5The children shouldshouldn't spend all their money on sweets.

• 6I shouldshouldn't go to bed so late. I always feel so tired at school.

• 7We shouldshouldn't study for the test tomorrow.

• 8My friends shouldshouldn't do more exercise. They're not very fit.

 4Put the words in the correct order to make sentences. 

You need to use correct punctuation in this task.

• • tonight
  • should
  • we
  • out
  • go
  • ?

  1

• • so
  • they
  • work
  • late
  • shouldn't
  • .

  2

   

• • should
  • water
  • drink
  • I
  • more
  • .

  3

   

• • doctor
  • to
  • should
  • the
  • go
  • you
  • .

  4

   

• • that
  • he
  • computer
  • buy
  • expensive
  • shouldn't
  • .

  5

   

• • phone
  • my
  • should
  • sister
  • I
  • ?

  6