When Can I use form - ing?

The - ing form can be used in these patterns:

When you talk about preferences: I like swimming; I hate watching TV. (Person + like / hate / love + - ing) When you talk about an activity: Studying for exams is hard; Walking in the rain is nice. (-ing + verb) You can finfd the - ing functioning as an adjective: sleeping pills; walking stick; smoking room. (-ing + noun) You should use - ing after prepositions: I am interested in learning Chinese; I am keen on having pasta. (preposition + -ing)

The - ing form can be used as a noun. For example: "reading is my favorite activity in my spare time."

It can also be used as an adjective, for example: "That movie had a very surprising end".

The - ing form can also be used as a verb in the progressive or continuous tense, for example: "I am watching TV now." (I am watching TV at this moment). Or: "I was waiting for him, when she told me he would not come to the party." (The action of waiting was in the past, when I heard he would not come to the party).