| F. The comparison of adjectives
We form the comparative and superlative of
short adjectives with er and est. See Unit 110.
old → older, oldest
quick → quicker, quickest
We do not usually double a consonant when the
1. If the adjective ends in e, we add r and St.
late → later, latest fine →finer, finest
2. When an adjective ends in a consonant + y, the
heavy → heavier, heaviest
lucky → luckier, luckiest
3. Sometimes we double a final consonant. This happens when a one-syllable adjective ends with one vowel and one consonant, e.g. big, flat.
big → bigger, biggest flat → flatter, flattest
For more details about doubling, see G.
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