This document provides an overview of subjects, verbs, and other parts of speech in sentences. It defines the subject as the person, place, thing or idea that the sentence is about. Verbs express action and tell what the subject is doing. There are also linking verbs that connect the subject to something said about it, and helping verbs that combine with the main verb. The chapter discusses identifying subjects and verbs, and provides examples of sentences with prepositional phrases crossed out and subjects and verbs highlighted.