As ... as & Not as ... as grammar examples and comparison

We use as + adjective/adverb + as to make comparisons when the things we are comparing are equal in some way: The world’s biggest bull is as big as a small elephant. The weather this summer is as bad as last year. It hasn’t stopped raining for weeks. You have to unwrap it as carefully as you can. It’s quite fragile. See also: Comparison: adjectives (bigger, biggest, more interesting) Not as … as We use not as … as to make comparisons between things which aren’t equal: It’s not as heavy as I thought it would be, actually. Rory hasn’t grown as tall as Tommy yet. She’s not singing as loudly as she can.