Use the comparative form to talk about how two things are different.
I am taller than you.
This book is thicker than that one.
1) If an adjective has one syllable, add er to the end. If it ends in e already, just add r.
tall => taller nice => nicer
thick => thicker late => later
2) If an adjective ends in one vowel and one consonant, write the consonant again, then write er. But never write a w twice.
big => bigger new => newer (NOT newwer) thin => thinner slow => slower (NOT slowwer) slim => slimmer
My brother is thinner than me.
3) If an adjective has two syllables and ends in y, change the y to i and add er.
funny => funnier silly => sillier
Which of these books is funnier?
5) Some adjectives have irregular superlative forms. These are listed below.
good => better
bad => worse
far => further
Add than after a comparative adjective to compare one thing with another. However, this is not always necessary.
My house is smaller than yours.