BLUE TUTORIALS

Countable nouns are easy to recognize. They are things that we can count. For example: "pen". We can count pens. We can have one, two, three or more pens. Here are some more countable nouns:

* dog, cat, animal, man, person
* bottle, box, litre
* coin, note, dollar
* cup, plate, fork
* table, chair, suitcase, bag

Countable nouns can be singular or plural:

* My dog is playing.
* My dogs are hungry.

We can use the indefinite article a/an with countable nouns:

* A dog is an animal.

When a countable noun is singular, we must use a word like a/the/my/this with it:

* I want an orange. (not I want orange.)
* Where is my bottle? (not Where is bottle?)

When a countable noun is plural, we can use it alone:

* I like oranges.
* Bottles can break.

We can use some and any with countable nouns:

* I've got some dollars.
* Have you got any pens?

We can use a few and many with countable nouns:

* I've got a few dollars.
* I haven't got many pens.

Tips: "People" is countable. "People" is the plural of "person". We can count people: * There is one person here. * There are three people here.

source : http://www.englishclub.com