as as adverb / preposition
at this example:
came as quickly as he could.
structure is used to measure and compare things that are of similar
proportion. In this construction, the first as functions
as an adverb modifying the following adjective or
adverb. The second as functions as a preposition
when it relates to the following noun or pronoun.
(It can also function as a conjunction when it relates to
the following clause.) Compare the following:
meal was as good as the conversation: spicy and invigorating!
spoke as slowly as she could
everybody eaten as much as they want?
hope you will agree that I am as imaginative a cook as my
from the above example that if there is an adjective and a noun
after the first as, a / an must go between them. Note also
that if we want to make a negative statement, we can use so
instead of as
is not so / as intelligent as his sister
cafeteria was not so / as crowded as it was
are a large number of idiomatic expressions or fixed phrases which
we use in informal English when we are making comparisons like this.
Here are a few of them in context:
went as white as a sheet when he saw the ghost.
maths teacher is as deaf as a post and should have retired
sat there as quiet as a mouse and wouldnt say anything.
will be restored to our homes as soon as possible.
the children were as good as gold when they came to visit
stories are as old as the hills and have been passed down
from generation to generation.
that when we are measuring or comparing things that are of unequal
proportion, we need to use the structure comparative + than:
me finish the report. I can type much faster than you (can).
played the piece of music more slowly than I had ever heard
it played before.