Adjectives modify nouns.
We can also use adjectives to compare two nouns.
Sally is smart.
Laura is smart.
In both of these sentences, the subject is described as being smart.
If we want to compare the two girls, we use a comparative adjective.
Laura is smarter than Sally.
Add –er onto an adjective to make it a comparative adjective. Then use the comparative adjective to compare two nouns.
Here are some more examples:
Bob is tall. Andrew is taller.
The brown bunny is small. The white bunny is smaller.
My bedroom is cold. The basement is colder.
The wooden house is old. The brick house is older.
Sometimes we make a comparative adjective by putting the word more in front of the adjective.
Here are some examples:
A car race is exciting. The circus is more exciting.
This video game is expensive. My television is more expensive.
When making a comparative adjective, add -er to one-syllable adjectives. Use the word more in front of longer adjectives.
old< older
wise< wiser
young< younger
doubtful< more doubtful
valuable< more valuable
hopeless< more hopeless
Two-syllable adjectives that end in –y do not use more. Change the -y to -i and add -er to show comparison.
pretty< prettier
happy< happier
scary< scarier
Use comparative adjectives to compare two nouns. Add -er to an adjective or put the word more in front of the adjective to make it a comparative adjective.