One-syllable adjectives. Form the comparative and superlative forms
of a one-syllable adjective by adding –er for the comparative form and
–est for the superlative.
example
One-syllable Adjetive tall
old long
comparative form taller
older longer
Superlative Form tallest
oldest longest
Two-syllable adjectives. With most two-syllable adjectives, you form
the comparative with more and the superlative with mos
example
two.syllable Adjetive
peaceful pleasant careful
thoughtful
Comparative Form
more peaceful more
pleasant more careful
more thoughtful
Superlative Form most peaceful
most pleasant most careful most
thoughtful Superlative Form most
peaceful most pleasant most
careful most thoughtful
Adjectives with three or more syllables. For adjectives with three syllables
or more, you form the comparative with more and the superlative with most.
example
Adjectives With Three or more syllables
generous important intelligent
Comparative Form more
generous more important
more intelligent
Superlative Form most
generous most important
more intelligent