Passive Voice

Adjectives Positive Comparative Superlative
of one syllable add -(e)r/-(e)st to form their comparative and superlative forms short

big

large

shorter (than)

bigger (then)

larger (than)

the shortest (of/in)

the biggest (of/in)

the largest (of/in)

of two syllables ending in -er, -ly, -y, -w also add -er/-est heavy

shallow

heavier (than)

shallower (than)

the heaviest (of/in)

the shallowest (of/in)

of two or more syllables take more/most specil

attractive

more special (than)

more attractive (than)

the most specil (of/in)

the most attractive (of/in)

Certain adjectives form their comparative and superlative in both ways, either by adding -er/-est to the positive form or taking more/most. Some of these are: clever, common, cruel, friendly, gentle, narrow, pleasant, polite, quiet, simple, stupid etc.

clever - cleverer - cleverest ALSO clever - more clever - the most clever

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