Regular Comparison

Rules for comparative and superlative forms

Regular Comparison
PatternRuleExamples
+ er/estShort adjectives (1 syllable): add -er / -est
tall→taller→tallest
fast→faster→fastest
old→older→oldest
double + er/estCVC ending: double final consonant + -er / -est
big→bigger→biggest
hot→hotter→hottest
thin→thinner→thinnest
y → ier/iestAdjectives ending in -y: change y to -ier / -iest
happy→happier→happiest
easy→easier→easiest
early→earlier→earliest
more / mostLong adjectives (2+ syllables): use more / most
beautiful→more beautiful→most beautiful
important→more important→most important
carefully→more carefully→most carefully

FAQ

When do you use -er/-est vs more/most for comparatives?

Short adjectives (one syllable) typically add -er/-est (tall/taller/tallest). Longer adjectives (two or more syllables) use more/most (beautiful/more beautiful/most beautiful). Two-syllable adjectives ending in -y change to -ier/-iest (happy/happier/happiest).

What are the irregular comparative and superlative forms?

The most common irregular comparisons are: good/better/best, bad/worse/worst, far/farther(further)/farthest(furthest), little/less/least, much(many)/more/most, and old/elder(older)/eldest(oldest).

What is the difference between comparative and superlative?

Comparative forms compare two things (e.g. 'taller than'), while superlative forms indicate the highest degree among three or more things (e.g. 'the tallest'). Comparatives use -er or more, superlatives use -est or most.

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