V.ARTICLE:Learning more about a/an

countable and uncountable nouns:

Countable nouns-are things that we can count using numbers, it maybe in singular form or in plural form.

singular plural
a dog two dogs
a paper seven papers
a shop three shops

examples:
She has two dogs.
I have a shop.
Do you have a paper?

Uncountable nouns-are for things that we can't count with numbers.
They may be the names for abstract ideas or qualities or for physical objects that are too small or too amorphous to be counted (liquids, powders, gases, etc.). Uncountable nouns are used with a singular verb. They usually do not have a plural form.

examples:

air
water
love
sea
safety

-a/an must be used with singular countable nouns-
a flower an antelope
a house an apple

-uses of a/an-
..used when talking about a person or a thing..
We had a great meal.
They owe me a penny.
She had an attack.

..used when talking about any member of a class..
I would love to have a good outfit today.
A mother must have patients with there kids.

..used when classifying or defining people and thing..
I am excited in becoming a new nurse.
He is a psychiatrist.

..used when describing a noun..
He has a lovely eyes.
She has a beautiful dress.
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