She is (more clever, most clever) than her sister.
She is more clever than her sister.
These shoes are the (cheaper, cheapest) in the store.
These shoes are the cheapest in the store.
English is the (more difficult, most difficult) subject for me.
English is the most difficult subject for me.
My mother is (younger, youngest) than my father.
My mother is younger than my father.
English is (more difficult, most difficult) than Math.
English is more difficult than Math.
She is the (more beautiful, most beautiful) girl in the world.
She is the most beautiful girl in the world.
January is the (colder, coldest) month of the year.
January is the coldest month of the year.
She is (prettier, prettiest) student in the class.
She is prettiest student in the class.
My brother is (taller, tallest) than me.
My brother is taller than me.
China is (bigger, biggest) than Korea.
China is bigger than Korea.
He is (more popular, most popular) than her.
He is more popular than her.
His backpack is (heavier, heaviest) than mine.
His backpack is heavier than mine.
He is my (better, best) friend.
He is my best friend.
An airplane is (faster, fastest) than a train.
An airplane is faster than a train.