Englishfor English speakers
as
Preposition
—
A word that is used to compare two things that are equal.
As you know, we need more workers.
I baked the cake as my mother used to.
The room looks just as it did when I was a child.
The speech, as he remembered it, was very powerful.
Interesting as it seems, I don't think I'll get it.
He was as big as a mountain.
—
A word that is used to show that two things happened at the same time.
Just as I went out, it started to rain.
We sleep as the world turns in darkness.
—
A word that is used to show why something happens.
As I couldn't understand French, I didn't watch the film.
as
Adverb
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A word that is used to compare two things that are equal. (Used before adjectives)
You are younger than I am, but nearly as tall.
This is not as good as it was last time.
written
Adjective
—
If something is written it is in writing.
We have a written letter from our CEO.
We talked about allowing it, but the written rules are still against it.
with
Preposition
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With is used to show the other people or things present when something happened
I went to school with my brother.
—
With is used to describe something added to something else
The cat has a collar with a bell on it.
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With is used to show what thing is used to do something
He hit the nail with a hammer.
—
Used to introduce non-finite and verbless clauses.
With the children so sick, we weren't able to get much work done.
a
Determinative
—
A is used when the following word could be any of a certain type.
Compare "A book I saw on the shelf" and "The book I gave you yesterday".
a
Noun
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A is the first letter of the alphabet.
The letter "a" comes before "b".
—
In some schools, an A is a very high grade.
Ron got an A on his earth science test.
brush
Noun
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A brush is a tool with many thin pieces of plastic to smooth hair and wool.
brush
Verb
—
If you brush something, you clean it with a brush.
I forgot to brush my teeth before going to bed.