(not) as ... as

When we say that two things are the same in some way, we can use as ... as with an adjective or an adverb. It's as cold as ic...

When we say that two things are the same in some way, we can use as ... as with an adjective or an adverb.

It's as cold as ice.

He drove as fast as he could.

She's as bad-tempered as her mother.

In negative comparisions, we can use not as ... as or not so ... as. Both are correct in modern English.

She's not as/so nice as her sister.

These pairs of jeans are not as expensive as those.

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