Exercise: Fill in the blanks with the correct form of the verb in parentheses (using -ing + infinitive, to + infinitive, or infinitive without to).

1. I enjoy (read) ____ books in my free time.
2. She suggested (go) ____ to the movies tonight.
3. They admitted (steal) ____ the cookies from the jar.
4. We need (buy) ____ some groceries for dinner.
5. He promised (help) ____ me with my homework.
6. The teacher encouraged (participate) ____ in the class discussion.
7. My parents allowed me (stay) ____ out late on weekends.
8. She can’t stand (listen) ____ to loud music.
9. They decided (take) ____ a vacation to the beach.
10. He offered (drive) ____ us to the airport.

Answers: 1. reading 2. going 3. stealing 4. to buy 5. to help 6. participating 7. to stay 8. listening 9. to take 10. to drive