Gerunds are verb forms that act like nouns. They can be used as:

• Subject

• Direct Object

• ​Indirect Object

• Subject Complement/ Predicate Nominative

• Object of the Preposition

Subject- a noun that is doing the action or is the state of being

Eating is a competitive sport in some places!

Eating- (Gerund)

is- verb

Direct Object

A direct object is a NOUN that receives the action of the verb. It answers the question "what?" It uses an ACTION verb

My dog enjoys barking.

dog- subject

enjoys- verb

barking- (Gerund) direct object

Subject Complement

A NOUN that renames or explains the subject. It is used with a linking verb.

My dog's favorite past time is barking.

past time- Subject

is- verb

barking- (Gerund) subject complement

Object of the Preposition

A noun that receives the action of the preposition. It is normally at the end of a prepositional phrase

We got my grandfather's attention by waving.

We- Subject

got- verb

Waving- (Gerund) Object of the Preposition