Gerunds are verb forms ending in "-ing" that function as nouns. Certain verbs are followed by gerunds, such as "enjoy", "quit", and "mention". Phrasal verbs like "give up" can also be followed by gerunds. The verb "go" is commonly used in idiomatic expressions with gerunds describing activities. Gerunds can also be used as objects of prepositions combined with verbs, such as "apologize for", "accused of", and "look forward to". Examples are provided to illustrate different verb+preposition+gerund combinations. A practice exercise tests understanding of verbs followed by gerunds or preposition+gerund combinations.