What is the function of a linking verb?

• A. Connects the subject with a word in the predicate
• B. Always takes a direct object
• C. Describes an action performed by the subject
• D. Modifies a noun

Answer: (A)

A linking verb connects the subject to information in the predicate, usually a noun or an adjective that describes or renames the subject. It doesn’t show action and it doesn’t take a direct object. Instead, it links the subject to a predicate nominative (a noun that Renames the subject) or a predicate adjective (an adjective that describes the subject). For example, in “The sky is blue,” the verb is the link between the subject “sky” and the description “blue.” In “She became a teacher,” “became” links the subject to its renaming phrase.

That’s why this option is the best fit: it states the function as connecting the subject to a word in the predicate. The other ideas describe different grammatical roles—taking a direct object, describing an action, or modifying a noun—which are not what linking verbs do.