This document provides information on the uses and formation of gerunds and infinitives in English. It explains that gerunds and infinitives can function as nouns, subjects, objects, or subject complements. Gerunds are formed with the "-ing" suffix added to the base verb form, while infinitives use "to" plus the base form. The document outlines which verbs are followed by gerunds or infinitives and the differences between their meanings. It also discusses the passive, perfect, progressive, and perfect progressive forms of gerunds and infinitives.