what is comparative form?

to the adjective you have to put "er"

when the adjective ends in a consonant vowel consonant, the last consonant must be doubled

when it ends in "y" it is replaced by "i" and we add "er"

when we have more than two syllables we add "more"

irregular comparatives: those who have no rules

example sentence with more than 2 syllables

example sentence, one syllable

example sentence ending in "y"

example sentence of irregular comparative