This document provides rules for forming comparative and superlative adjectives in English. It explains that one-syllable adjectives typically form the comparative with -er and the superlative with -est. Two-syllable adjectives ending in certain letters, like -y, form comparatives with -er/-iest. Adjectives with three or more syllables, or endings like -ed/-ing/-ful/-less, use 'more' and 'most'. Irregular adjectives like 'good' have unique forms. Comparatives are often used with 'than' and superlatives can be used alone or with phrases like 'in' or 'of' to specify the comparison.

1. COMPARATIVE AND SUPERLATIVE ADJECTIVES

7. IRREGULAR ADJECTIVES The farthest/furthest Farther/further Far The worst Worse Bad The best Better Good Superlative Comparative Adjective