This document discusses the rules for forming comparative adjectives in English. It explains that adjectives are generally made comparative by adding -er or using more/less. One-syllable adjectives typically add -er. Two-syllable adjectives ending in -y change the -y to -ier. Other two-syllable adjectives use more. Adjectives with three or more syllables also use more. A few adjectives like good, bad, far, well are irregular and must be memorized. Examples are provided to illustrate each rule.