Here are some examples:
* Swimming is my favorite exercise. (The gerund "swimming" is the subject of the sentence.)
* I enjoy reading in the evenings. (The gerund "reading" is the object of the verb "enjoy".)
* Working from home has its advantages. (The gerund "working" is the subject of the sentence.)
Gerunds can also function as the object of a preposition:
* I'm tired of waiting. (The gerund "waiting" is the object of the preposition "of".)
Key characteristics of gerunds:
* They always end in "-ing."
* They function as nouns, meaning they can be the subject, object, or object of a preposition.
* They often describe an action or activity.