The indefinite article - a/an

The definite article
The indefinite article
Exercises: Articles

The indefinite article - a

The indefinite article is the a is the same for all genders.
a boy, a girl, a cat

The indefinite article has no plural form.
a boy - boys

We use an if the following word starts with a vowel.

the following word starts with a consonant the following word starts with a vowel
a boy an aunt
a school an old school
a girl an American girl

Mind the pronunciation of the following word.

a unit an uncle
This u sounds like a consonant, so we use a. This u sounds like a vowel, so we use an.

Use of the indefinite article a/an

- before phrases of time and measurements (per week/weekly)

We have English 4 times a week.
I go on holiday twice a year.
Our car can do 220 kilometres an hour.
Tomatoes are $2 a kilo.

- before phrases of jobs

My father is a car mechanic.

- with a noun complement

He is a good boy.

- before phrases of nationality

Bruce Springsteen is an American.

- half/quite

We need half a pound of sugar.
This is quite a good story.
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