This document discusses comparative and superlative adverbs. It defines an adverb as a word that modifies verbs, adjectives, other adverbs, and sentences. Comparative adverbs compare two actions, people, places or things and are formed by adding "-er" to one-syllable words or "less" or "more" to multi-syllable words. Superlative adverbs compare more than two things and identify the best, with "-est" added to one-syllable words or "most" or "least" added to multi-syllable words. Examples of commonly used comparative and superlative adverbs are provided along with explanatory sentences.