This document defines and describes adverbs. It begins by explaining that adverbs modify verbs, adjectives, phrases, and other adverbs by providing additional information about them. It then discusses how to recognize adverbs based on their function, form, and position. The document goes on to explain the different types of adverbs, including manner, time, place, degree, and frequency. It provides examples for each type and discusses how their forms are created. The document concludes by discussing the positions of adverbs in sentences and their use as intensifiers.