Question 1

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

Accepted Answer

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).

Question 2

What are the irregular comparative and superlative forms?

Accepted Answer

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).

Question 3

What is the difference between comparative and superlative?

Accepted Answer

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.

パターン	ルール	例
+ er/est	短い形容詞（1音節）：-er / -est をつける	tall→taller→tallest fast→faster→fastest old→older→oldest
double + er/est	CVCで終わる場合：語末の子音を重ねて + -er / -est	big→bigger→biggest hot→hotter→hottest thin→thinner→thinnest
y → ier/iest	-y で終わる形容詞：y を -ier / -iest に変える	happy→happier→happiest easy→easier→easiest early→earlier→earliest
more / most	長い形容詞（2音節以上）：more / most を使う	beautiful→more beautiful→most beautiful important→more important→most important carefully→more carefully→most carefully

規則的な比較

FAQ

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

What are the irregular comparative and superlative forms?

What is the difference between comparative and superlative?

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