This document discusses the formation of comparative and superlative adjectives in English. It provides rules for one-syllable adjectives (add -er, -est), two or more syllable adjectives (add more, most or less, least), two-syllable adjectives ending in y (change y to i before adding -er, -est), and irregular adjectives (better, best, worse, worst, more, most, less, least, farther/further, farthest/furthest). It also notes that adjectives ending in a vowel and consonant double the consonant, except for w or y. Comparatives compare two things and superlatives compare one

1. Comparative & Superlative Adjectives
Formation
Form Adjective Comparative Superlative
One syllable : long longer than the longest
nice nicer than the nicest
(add -er)
hot hotter than the hottest
Two or more syllables : famous more famous than the most famous
(add more or less before interesting less interesting than The least interesting
the adjective) practical more practical than the most practical
Two syllables ending in -
funny funnier than the funniest
y:
(the 'y' becomes ' i ' before easy easier than the easiest
-er) happy happier than the happiest
Irregular Adjectives : good better than the best
bad worse than the worst
much/many more than the most
little less than the least
far farther/further than the farthest/furthest
N.B.
Adjectives ending with a vowel and a consonant double the consonant
for example : big - bigger- the biggest,
except when the consonant is 'w' or 'y'
for example : new - newer - the newest.
Use
Comparative adjectives are used to compare two things or people to each other.
Superlative adjectives are used to compare one member of a group to the whole group.
Ex : The Amazon river is longer than the Mississippi.
The Nile is the longest river in the world.