In comparatives, we compare two (or two group of) people, things, or animals
*** Ayse is 4 years old. Mehmet is 6 years old.
*** Ayse is younger than Mehmet.
*** Birds are smaller than horses.
We use -er and than in one syllable adjectives.
*** old - My father is older than my mother.
*** tall - Jack is taller than Mike.
*** big - An elephant is bigger than a dog.
Note: We double the final consonant in one-syllable adjectives ending in :
a) one vowel + one consonant before -er.
*** Summer is hotter than spring.
*** Mr. Brown is fatter than Mrs. Brown.
b) We add only -r one-syllable adjectives ending in -e.
*** This house is larger than that house.
c) In adjectives ending in consonant -y, we change the -y into -i before -er
*** My bag is heavier than yours.
*** Jane is prettier than Susan.
d) We use more .......... than with the two or more syllable adjectives.
*** Izmir is more crowded than Ay dm.
*** Snakes are more dangerous than bees.
*** This hotel is more expensive than that hotel.
*** Physics is more difficult than biology.
e) There are some irregular adjectives. We do not add -er to these adjectives to make comparative.
Adjective : good bad much many far little
Comparative : better worse more more farther / further less
*** My English is better than my German.
*** Ali's marks are worse than my marks.
*** I have got less money than you have got.
*** Old people have got more health problems than young people.