Must, Have To, Should: Rules and Advice worksheet

1. 1.
   In the UK, you drive on the left.a) have tob) should
2. 2.
   You look tired. You go to bed early.a) shouldb) mustn't
3. 3.
   It's a free event. You pay.a) mustn'tb) don't have to
4. 4.
   This is a secret. You tell anyone.a) don't have tob) mustn't
5. 5.
   Yesterday I work late.a) had tob) must

1. 1.
   You mustn't come if you're busy.
2. 2.
   I must to go now.
3. 3.
   I musted work yesterday.

Write three sentences of your own that use this rule. You can use these phrases.

• have to
• had to
• will have to
• ought to
• need to
• don't need to
• be supposed to

1. 1.a) have to It's the law: necessary, not just advice.
2. 2.a) should Advice: should.
3. 3.b) don't have to Not necessary: don't have to.
4. 4.b) mustn't Not allowed: mustn't.
5. 5.a) had to Must has no past form: had to.

1. 1.You don't have to come if you're busy. Not necessary is don't have to. Mustn't means not allowed.
2. 2.I must go now. No to after must.
3. 3.I had to work yesterday. Must has no past form. Use had to.

Answers will vary. Check that each sentence follows the rule on page 1, or paste them into Clarigram to have them checked.