Comparative Forms of Short Adjectives
Where do we use?
a. Use a comparative adjective + than to talk about the difference between two people, places or things.
Jane is taller than Peter.
My computer is slower than your mobile phone.
b. Than is not necessary when the second item in the comparison is understood by both the speaker and the listener.
c. For short adjectives (one syllable) , add -er to the end of the adjective.
old ________ older
new ________ newer
tall ________ taller
d. Some adjectives have irregular comparative forms.
good _____________ better
bad _____________ worse
far _____________ further
e. For adjectives with two or more syllables, add more in front of the adjective
Small cars are more economical than big cars.