The -ing Form

Reference

Common mistakes

1. I enjoy to swim. → I enjoy swimming.
   enjoy always takes -ing
2. She is good at to solve problems. → She is good at solving problems.
   after preposition "at" → -ing
3. I look forward to see you. → I look forward to seeing you.
   "to" here is a preposition, not part of infinitive
4. Before leave, turn off the lights. → Before leaving, turn off the lights.
   before/after + -ing

The -ing Form — Exercises

Complete with the correct preposition

Fill in: at / about / of / in / on.

1. The students were crazy   playing computer games, but now they are tired   doing that.
2. Are you good   listening to people?
3. I am afraid   going through the park at night.
4. We are not interested   learning about physics.
5. I am quite keen   understanding how devices work so I am not bad   mending things.

Rewrite using the -ing form

Rewrite each sentence using the words in brackets plus the -ing form.

1. Jon makes friends easily. (good at)
2. Kim plays computer games all the time. (crazy about)
3. Monica finds it difficult to learn Japanese. (bad at)
4. Norma left because she did not want to do more exercise. (tired of)

The -ing Form — Answer Key

Complete with the correct preposition

1. about · of
2. at
3. of
4. in
5. on · at

Rewrite using the -ing form

1. Model answer: Jon is good at making friends.
2. Model answer: Kim is crazy about playing computer games.
3. Model answer: Monica is bad at learning Japanese.
4. Model answer: Norma was tired of doing more exercise.