So sánh hơn (có 2 loại)

Short adj → S + tobe + adj + er + than + noun

Long adj → S + tobe + more  + adj + than + noun

→ Những từ có 3 âm trở lên thì sẽ thêm more đằng trước

So sánh nhất (có 2 loại)

Short adj → S + tobe / V+ the + adj / adv + est + noun      

Long adj → S + tobe / V+ the most + adj / adv + est + noun

→ Những từ có 3 âm trở lên thì sẽ là the most

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Phong is two years  younger (young) than Paul

Sam is the tallest (tall) boy in our class

Nhi is taller (tall) than Ngan

Your car is cheaper (cheap) than mine

These cakes are the best (good) in this shop

I think it is the longest (long) day

It is the most boring (boring) film this week

This text is the easiest (easy) text in the book

My mobile is more expensive (expensive) than yours

It is the oldest (old) tree in this park

December is colder (cold) than September

August is the  hottest (hot) month of the year

April is warmer (warm) than January

Pam's hair is longer (long) than Kate's hair