Nouns – countable and uncountable

We can use countable nouns for things we can count. They can be singular or plural.

I've got a book, but she's got two books.

We can use uncountable nouns for things we can't count.

There's some bread and cheese on the table.

How to use them

Use a or an before singular nouns. Use some before plural nouns and uncountable nouns in positive sentences.

We don't want a test.
I can see an ant.
They've got some bananas.
She needs some glue.

Use any before plural nouns and uncountable nouns in negative sentences and questions.

I haven't got any oranges. Are there any pears?
There isn't any glue. Have you got any paper?

Use is or isn't with singular nouns and uncountable nouns.

There's a house but there isn't a garden. Is there a garage?
There's some water but there isn't any juice. Is there any cola?

Use are or aren't with plural nouns.

There are some sandwiches but there aren't any cakes. Are there any grapes?