This presentation introduces the topic of subject-verb agreement and some of the difficulties associated with it. It explores how singular and plural subjects require singular and plural verbs respectively. It also discusses how certain pronouns like "everyone" are always singular, and how phrases between subjects and verbs don't impact the agreement. Examples are provided to illustrate agreement with pronouns like "all" and "some" depending on whether the item is countable. The document concludes by covering some additional cases of subject-verb agreement like with "either/neither" and expletive constructions.