1 Comparison with -er/-est clean → cleaner → (the) cleanest We use -er/-est with the following adjectives: 1.1 Adjectives with one syllable positive clean new cheap 1.2 Adjectives with two syllables and the following endings: 1.2.1 Adjectives with two syllables, ending in -y positive dirty easy happy pretty 1.2.2 Adjectives with two syllables, ending in -er positive clever 1.2.3 Adjectives with two syllables, ending in -le positive simple 1.2.4 Adjectives with two syllables, ending in -ow positive narrow 1.3 Spelling of the adjectives using the endings -er/-est positive comparative large larger big bigger sad sadder dirty dirtier shy shyer Comparison with more – most all adjectives with more than one syllable (except some adjectives with two syllables – see 2.1 to 2.4.) positive difficult Irregular adjectives positive good bad much many little little Special adjectives Some adjectives have two possible forms of comparison (-er/est and more/most) positive c clever c common c likely l pleasant p polite p quiet q simple s stupid s subtle s sure s Difference in meaning with adjectives positive far late old near ...2 Comparison with more – most all adjectives with more than one syllable (except some adjectives with two syllables – see 2.1 to 2.4.) positive... adjectives positive good bad much many little little Special adjectives Some adjectives have two possible forms of comparison (-er/est and more/most) positive c clever c common c likely l pleasant