This document outlines the goals and key markers for Module 3 of the course ENG 411B Principles of Modern Grammar. The module aims to teach students to identify and analyze in context the main verb phrase, verb tenses and forms, passive structures, prepositional phrases, infinitive phrases, and participle and gerund phrases. It provides the key markers and formulas for analyzing these grammatical structures, such as the main verb phrase formula and markers for identifying passive voice.