This document provides an overview of prepositions in English. It defines prepositions as words that link nouns, pronouns, and phrases to other words in a sentence. The document then gives examples of different types of prepositions, including prepositions of location, time, and place. It also discusses prepositional phrases and prepositional verbs. In total, the document aims to help readers better understand how prepositions are used and become more proficient in using them correctly.