When to use -ing
The -ing form is used when the word is the subject of a sentence or clause:
- Swimming is good exercise.
- Doctors say that smoking is bad for you.
The -ing form is used after a preposition:
- I look forward to meeting you.
- They left without saying "Goodbye."
The -ing form is used after certain verbs:
- avoid, dislike, enjoy, finish, give up, mind/not mind, practise
- I dislike getting up early.
- Would you mind opening the window?