The gerund is a verb form that functions as a noun and expresses ongoing actions or states. In English, gerunds end in “-ing” and are used in various ways, such as subjects, objects, and complements.
For example, in the sentence:
“Swimming is my favorite hobby,” “swimming” is a gerund acting as the subject.
Gerunds are versatile and commonly used in both spoken and written English to convey continuous actions, habits, or general truths.