What is a gerund phrase?

• A. A phrase that starts with an auxiliary verb
• B. A phrase that includes an -ing word functioning as a noun
• C. A phrase that only modifies a verb
• D. A phrase that provides additional details about a noun

Answer: (B)

A gerund phrase is indeed characterized by its incorporation of an -ing verb form that functions as a noun. In this phrase, the gerund, which represents a verb in its continuous form, takes on the role of a noun within the sentence structure. This means that it can serve various functions typically associated with nouns, such as acting as a subject, direct object, or object of a preposition.

For example, in the sentence "Swimming in the ocean is fun," the gerund phrase "Swimming in the ocean" acts as the subject. The -ing form "swimming" conveys an action while also being treated as a noun, and the prepositional phrase "in the ocean" adds context to where the swimming takes place.

The other options do not accurately define a gerund phrase. An auxiliary verb refers to a helping verb that assists the main verb but does not form the basis of a gerund phrase. Modifying a verb or providing details about a noun pertains to different grammatical constructs, focusing more on adjectives or adverbial phrases rather than a gerund phrase's unique role as a noun form.