When comparing in English use than:
my motorcycle is faster than yours
her room is cleaner than her sister's
I feel more exhausted today than I felt yesterday
You can use two comparatives that end in -er and - er, joined with and, to convey the idea of general increase or decrease:
houses are getting less and less expensive
baby toys are becoming more and more beautiful
people are getting more and more rude these days
To show cause and effect we use the structure: the + comparative + the:
the less I work, the less money I make
the more books you read, the more you know
the more candy I eat, the less I want to eat vegetables
More and most in comparisons:
more is used with countable and uncountable nouns
more is used with numbers
more water is drunk in summer than in winter
a: how many more bottles do you need?
b: twelve more please
Most means the largest number of or the greatest amount of:
most doctors don't sleep much
most coffee is exported (not the most)
Intensifiers and adverbs of degree used with comparatives:
We use very, too, quite before the basic form of an adjective. we can't use them with the comparative:
very wet, too cold, quite hot
With the comparative, we use a bit, very much, much, far, even, hardly any, a lot, lots, a little, no, rather, somewhat:
it's much/far/a lot/a little warmer today than it was last week
hotels are much/far/a lot less comfortable these days
I think there will be many more/many fewer wars in the future
Even and all the are often used for emphasis in front of more with adjectives ending in – ing and – ed:
The economic crisis is even more tiring for people this year
he became all the more anxious when he got promoted
The in the superlative form of adjectives.
The is put before a superlative in a phrase or sentence:
where is the best seafood restaurant in Spain?
martin is the nicest person I have ever met.
they are the most beautiful couple I know.
The is sometimes omitted after which:
Which car is fastest? ssc tuatara or bugatti veyron super sport?
The is also omitted when the superlative is placed before a:
to-infinitive
I believe it is best to wait and see what happens.
She thinks it would be craziest to jump without a parachute.
Adverbs of degree used with superlatives:
Adverbs of degree used with superlatives include almost, altogether, by far, far, much, nearly, practically, quite:
this is quite/(by) far the most beautiful dress in the store
this is practically the best part of town
comparison, similarity, and contrast
as...as to indicate that two people, things, etc. are similar
cats are as intelligent as dogs
not as...as/not so...as to indicate a lower degree
jenny is not as/not so agreeable as her sister
more than/less than/worse than + adjective
they were more than happy to help me
I was less than pleased to answer her stupid question
this glue is worse than useless
the same, different from
my exam results are the same as hers
the twins look very similar but they are completely different from each other
different from, different to
Different from and different to is used in British English. different to is not commonly used in American English:
cats are different from/to dogs
Almost, exactly, just, nearly (+ as + adjective) are used to express degrees of similarity:
just, nearly + as + adjective:
Mariah Carey is just as famous as Whitney Houston
cats are nearly as popular in Poland as dogs
almost, exactly, just, (not) quite + the same
all these houses are almost/exactly/just/quite the same
completely, entirely, quite + different
these houses are completely/entirely/quite different