Select a complete sentence to identify the predicate adjective. Underline the subject of the sentence first. For example, in the sentence "Ralph is short," "Ralph" is the subject.
Identify the linking verb in the sentence. For example, the linking verb in the sentence "Ralph is short," is the verb "is." Draw two lines under the linking verb.
Identify the predicate adjective by circling the adjective that modifies or describes the noun and is next to the linking verb. In this case, "is" connects the adjective "short" to the subject "Ralph."