Fill in the blanks with an infinitive with or without to.
1. She didn't allow me ........................
Allow is followed by an infinitive with to.
2. Please let him .......................
Let is followed by an infinitive without to.
3. You ought .................. to your attorney.
Ought is followed by an infinitive with to.
4. They made me ..................... the whole story.
When made is used in the active voice, it is followed by an infinitive without to.
5. I was made .......................
When made is in the passive voice, it is followed by an infinitive with to.
6. I was unable ...................... a solution to the problem.
Unable is followed by an infinitive with to.
7. I can't ..................... any longer.
The infinitive is used without to after modals.
8. I forgot .................... the letter.
Forget is followed by an infinitive with to.
9. You don't need ....................... for me.
When need is used as an ordinary verb, it is followed by an infinitive with to.
10. You need not ........................ for me.
When need is an auxiliary verb, it is followed by an infinitive without to.
11. She refused ......................... any help.
Refused is followed by an infinitive with to.
12. I was forced .......................
Answers
1. She didn’t allow me to go.
2. Please let him go.
3. You ought to talk to your attorney.
4. They made me repeat the whole story.
5. I was made to wait.
6. I was unable to find a solution to the problem.
7. I can’t wait any longer.
8. I forgot to post the letter.
9. You don’t need to wait for me.
10. You need not wait for me.
11. She refused to offer any help.
12. I was forced to quit.
