An adjective is a word that modifies or describes a noun or pronoun. Adjectives usually precede the noun or pronoun it modifies. Adjectives formed from proper nouns are called proper adjectives. Proper adjectives are always capitalized. The verb is the main word in the predicate of a sentence.
Some verbs express action and are called action verbs.
Other verbs link the subject with a word or words in the predicate and are called linking verbs. An action verb is transitive when it is followed by a noun or pronoun that tells who or what receives the action. The word that receives the action is called the direct object. An action verb without a direct object is intransitive. Singular subjects must take singular verbs.