This document provides information on forming and using comparative and superlative adjectives and adverbs in English. It defines comparative and superlative forms, and provides rules and examples for forming comparatives and superlatives of one-syllable and two-syllable adjectives and adverbs ending in -ly. It also lists irregular comparative and superlative forms that do not follow standard rules. Finally, it discusses common patterns involving comparatives and superlatives, such as using "as...as" and "than."