Test for the rule “-ing + infinitive, to + infinitive, infinitive without to”:

Instructions: Choose the correct form of the verb to complete each sentence. Select either the “-ing + infinitive” form, the “to + infinitive” form, or the “infinitive without to” form.

1. I enjoy (to swim / swimming / swim) in the ocean.
2. She decided (to go / going / go) to the party with her friends.
3. They prefer (to eat / eating / eat) at home rather than going out.
4. We need (to buy / buying / buy) some groceries for dinner tonight.
5. He suggested (to watch / watching / watch) a movie after dinner.
6. The children love (to play / playing / play) in the park.
7. She wants (to learn / learning / learn) how to play the guitar.
8. They plan (to visit / visiting / visit) their grandparents next weekend.
9. He offered (to help / helping / help) me with my homework.
10. We decided (to take / taking / take) a walk in the park.

Answers: 1. swimming 2. to go 3. eating 4. to buy 5. watching 6. playing 7. to learn 8. to visit 9. to help 10. to take