Adding -er/est

We make the comparative or superlative forms of short adjectives by adding -er or -est, for example: hard, harder, hardest

Spelling Rule
Just add -er or -est to the end of the adjective, for example:

Exceptions
(note: C=consonant; V=vowel)

If adj. ends in do this and add Examples
C + y change y to i er

est
happy
happier
happiest
C + e remove e late
later
latest
C + V + C double last letter hot
hotter
hottest
Note: adjectives ending in -l are regular, except:
cruel, crueller, cruellest