Gerunds

A gerund is the -ing form of a verb when it is used like a noun.

a) Gerunds after prepositions
We use gerunds when the verb is immediately after a preposition.

• He's looking forward to seeing his family again.
• I'm thinking of going to Hawaii.

b) Gerunds as subjects
We use gerunds when we are talking about an action ir activity in a general way.

• I like lying on the beach.
• Using gerunds is not hard.