The short answer
English uses exactly one method to form a comparative. Either add -er to the adjective or put more before it — never both at once. “More better” uses both methods simultaneously, making it a double comparative.
Which method to use?
| Adjective type | Comparative method | Examples |
|---|---|---|
| 1 syllable | Add -er | tall → taller, fast → faster, cold → colder |
| 1 syllable ending in -e | Add -r | large → larger, wise → wiser |
| 1 syllable CVC pattern | Double final consonant + -er | big → bigger, hot → hotter, thin → thinner |
| 2 syllables ending in -y | Change -y to -i, add -er | happy → happier, easy → easier, early → earlier |
| 2+ syllables (other) | Use 'more' | careful → more careful, honest → more honest |
| Irregular | Unique form (see below) | good → better, bad → worse, far → further/farther |
Common Double Comparative Errors
Irregular Comparatives — Memorise These
These do not follow either rule — they have unique comparative and superlative forms:
| Base | Comparative | Superlative |
|---|---|---|
| good | better | best |
| bad / ill | worse | worst |
| far | farther / further | farthest / furthest |
| little (amount) | less | least |
| many / much | more | most |
| old (people) | elder | eldest |
| old (things) | older | oldest |
| late (order) | latter | last |
| late (time) | later | latest |
Also watch: double superlatives
The same rule applies to superlatives. “Most tallest”, “most fastest”, “most worst” are all double superlatives and are always wrong. Use tallest, fastest, worst.
Frequently Asked Questions
Why is 'more better' wrong?+
'More better' is a double comparative error. English allows only one method of forming a comparative at a time: either add '-er' to the adjective OR put 'more' before it — never both. 'Better' is already the comparative of 'good'. Adding 'more' creates a double comparative: 'more better'. The correct form is simply 'better'.
What is the correct form — 'more good', 'gooder', or 'better'?+
'Good' has an irregular comparative — it does not follow normal rules. You cannot say 'more good' or 'gooder'. The correct comparative is 'better' and the superlative is 'best'. These are irregular forms that must be memorised.
What is a double comparative error?+
A double comparative error uses both '-er' and 'more' at the same time on the same adjective. Examples of double comparative errors: 'more bigger' (say 'bigger'), 'more taller' (say 'taller'), 'more better' (say 'better'), 'more faster' (say 'faster'). Use either '-er' or 'more' — never both.