This document provides a summary of key points about subject-verb agreement from a presentation on grammar. It covers how singular and plural subjects determine if a verb takes an 's' ending or not. Examples are provided to illustrate rules for compound subjects, indefinite pronouns, interrupted phrases, and inverted word order. A quiz with 10 items tests understanding of correcting subject-verb agreement errors in underlined portions of sentences. The presentation encourages further practice on this grammar topic.