Indefinite article (a/an)

Beginner (A1)en

Indefinite article – a / an

Indefinite Articles (a / an)

1. What Are Indefinite Articles?

Indefinite articles are words we use to talk about one thing or person for the first time. We often use them:

when we mention something for the first time,
to describe jobs or professions,
for general descriptions.

There are two indefinite articles:

a → before words that begin with a consonant sound
an → before words that begin with a vowel sound (a, e, i, o, u)

2. Using “a”
Structure: a + singular noun

Examples:

a dog
a book
a car

Sentences:

I have a dog.
It is a book.
I want a car.

Tip: Only use a with singular nouns.

3. Using “an”
Structure: an + singular noun

Examples:

an apple
an umbrella
an egg

Sentences:

I ate an apple.
She has an umbrella.
He bought an egg.

Tip: Use an when the noun starts with a vowel sound, not just a vowel letter.

Correct: an hour (h is silent, so vowel sound)
Incorrect: a hour

4. No Article

We do not use a / an in the following cases:

General meaning (talking about things in general)

→ I like dogs.
→ She enjoys reading books.

Meal times

→ We have breakfast at 8 a.m.
→ I like lunch with my friends.

Days, months, and years

→ She was born in July.
→ He arrived in 2023.
→ I have English class on Monday.

Television, school subjects, or languages

→ I watch television in the evening.
→ He studies mathematics.
→ She speaks French.

With “next” or “last”

→ I went to London last June.
→ We will visit them next week.

5. Important Notes

Use a / an only with singular nouns.
Do not use a / an with plural nouns or uncountable nouns.
When you talk about something for the first time, use a / an.

Examples:

I saw a dog in the park. (first time)
I like dogs. (general, no article)
She is a teacher. (profession)
He wants an orange. (first mention)

Key Points:

a → consonant sound, singular nouns.
an → vowel sound, singular nouns.
No article for general meaning, meals, days, months, years, television, subjects, languages, and with last/next/this.

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Indefinite article – a / an

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Related Vocabulary

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Indefinite article – a / an

Indefinite Article

2 words

a

determiner

Used to refer to a single, non-specific item or thing.

I saw a dog in the park.