This document defines and provides examples of gerunds. It explains that a gerund is a noun formed from a verb by adding "-ing" and acts as a noun, unlike a present participle which is part of a verb phrase. It provides examples of how gerunds can be used as subjects, after certain verbs like "love" and "enjoy", after expressions like "can't help", and after prepositions. It also gives examples of gerund use after the verb "go", in compound nouns, and after phrasal verbs.