Gerunds, infinitives, and participles are all examples of verbals. A verbal is essentially a verb being used as a different part of speech. For example, run can be used to describe an action. "I run 3 miles everyday." Run can also be used to describe an activity. "Running is my favorite hobby." In the first sentence, run is used as a verb, but in the second sentence running is used as a noun.
Gerunds are verbs that are used as nouns. Gerunds can be used as the subject, direct object, indirect object, predicate nominative, or the object of a preposition.
- Playing guitar is my favorite hobby. (subject)
- I enjoy singing karaoke. (direct object)
- Harry doesn't know anything about reading music. (object of a preposition)
- Playing the guitar, Spencer made the audience feel excited!
- His guitar is made of wood.
- Sally was fascinated by the playing piano.
- I learned to play the guitar when I was a child. (direct object)
- I have a song to write for my class. (adjective)
- Ezra is learning the piano to impress his girlfriend. (adverb)