show the noun that has the most of the quality of the adjective.
add “-est” to the end of adjectives with one syllable.
use “most” before adjectives with more than one syllable.
change “-y” to “i” before adding “-est”.
have irregular forms.
double consonants if the word ends in consonant + vowel + consonant.
add “-est” to the end of two-syllable words ending in “-y”.