Comparative adjectives
To make comparisons you need
The two people, animals, or things you are comparing
e.g. Dogs _________________cats
The adjective in its comparative form
To transform an adjective into a comparative one, you need to take into account the following rules and exceptions:
One syllable adjectives
Regla normal: Se agrega "er" al final. e.g. Cool- CoolER
If the adjectives ends in consonant, vowel, consonant, add an extra consonant before adding "er" e.e. hot-hotter
If the adjective ends in e, only add "r" e.g. Cute-cuter
If the adjective ends in "Y" change the "y" into an "I" and add "er" E.g. Happy-Happier
Three syllable adjectives
They add "more" before and leave the adjective unchanged. E.g. Important--more important
Irregular adjectives
They have to be learned by heart, that's to say, they don't follow rules so you have mo memorize them. E.g. far-farther/ good-better/ bad-worse.
The word "than"
Dogs __________ THAN cats
Normally, the verb "to be"
Dogs ARE ________ than cats.