2. Comparative adjectives:
For regular one-syllable adjectives:
Small-> smaller warm-> warmer
For adjectives ending in consonant + vowel +
consonant:
Big-> bigger hot-> hotter
For adjectives ending in y:
Easy-> easier busy-> busier
Comparative adjectives are followed by than
The moon is smaller than the sun.
3. big bigger
black blacker
bold bolder
brave braver
bright brighter
busy busier
clean cleaner
clear clearer
clever cleverer