The document outlines 14 rules for using the correct verb form in English sentences. It provides examples for each rule. The rules cover subjects and verbs agreeing in number, verbs following prepositions, the use of auxiliary verbs, verbs in passive voice constructions, verbs following time expressions like since and before, and using the gerund or infinitive form after another verb. The purpose is to help learners properly select the verb form based on factors like subject type, surrounding words, and tense.