This document summarizes the rules for forming comparative and superlative adjectives in English. It explains that one-syllable adjectives typically add -er and -est, two-syllable adjectives ending in certain letters add -er/-est while others use 'more'/'most', and adjectives with three or more syllables always use 'more'/'most'. It also covers irregular adjectives and the opposite forms using 'less' and 'least'.

1. COMPARATIVE AND SUPERLATIVE ADJECTIVES

7. IRREGULAR ADJECTIVES Adjective Comparative Superlative good better the best bad worse the worst far farther/further the farthest/furthest