This document discusses linking verbs. It defines linking verbs as verbs that connect the subject of a sentence to a word in the predicate that renames or describes the subject. Common linking verbs include forms of "to be" like is, am, are, as well as verbs related to senses like tastes, smells, looks, feels, sounds, and seems. The document provides examples of sentences containing linking verbs and identifies the linking verb and words it connects. It also introduces a technique for identifying linking verbs by substituting "is", "am", or "are" and seeing if the sentence still makes sense.