Comparatives are used to compare two things.
For one-syllable adjectives: adjective –er + than
He is taller than his cousin.
For two or more syllable adjectives: more + adjective + than (to show the opposite use less instead of more before the adjective).
This ring is more expensive than that one.
For adjectives ending in ‘y’: drop the ‘y’ and adjective –ier + than
She is funnier than him.
There are exceptions – good (better), bad (worse), far(further/farther), etc.
If the second person or thing being compared isn’t mentioned in the sentence, we drop than.
Which is more important, money or power? I think money is more important.
We can also use comparatives to compare one person or thing with all the rest of the people or things in their group.
John is more diligent than all of his classmates.
Superlatives are used to compare a person or thing with every other person or thing in the same group.
For 1 syllable adjectives: the + adjective –est
He is the tallest member of his family.
For 2 or more syllable adjectives: the + most + adjective (to show the opposite use least instead of most before the adjective)
This ring is the most expensive ring in the store.
For adjectives ending in y: drop the y and use the + adjective –iest
She is the funniest person here.
There are exceptions – good (best), bad (worst), far (furthest/farthest), etc.