Fill in the blanks.
1. She didn't allow me .................................. for the drink.
Allow is followed by an infinitive with to.
2. I won't let you .................................... my room.
Let is followed by an infinitive without to.
3. You ought .................................. a doctor.
Ought is followed by an infinitive with to.
4. I was unable ................................... the question.
Unable is followed by an infinitive with to.
5. Mother made me ................................ the room.
Make is followed by an infinitive without to.
6. I forgot ................................. the car.
Forget is followed by an infinitive with to.
7. I heard them ....................................... in the next room.
Hear is followed by an infinitive without to.
8. You needn't ....................................... for that drink.
When need is a modal auxiliary, it is followed by an infinitive without to.
9. You don't need ...................................... for me.
When need is an ordinary verb, it is followed by an infinitive with to.
10. I was forced ..................................
11. You should encourage him .................................... another attempt.
Encourage is followed by an infinitive with to.
12. He refused ..................................... to me.
Answers
1. She didn’t allow me to pay for the drink.
2. I won’t let you enter my room.
3. You ought to consult a doctor.
4. I was unable to answer the question.
5. Mother made me clean the room.
6. I forgot to lock the car.
7. I heard them talk in the next room.
8. You needn’t pay for that drink.
9. You don’t need to wait for me.
10. I was forced to leave.
11. You should encourage him to make another attempt.
12. He refused to talk to me.