Updated on November 27, 2024
by PushtoLearn
Test your English

Indefinite Articles: A and An

Having trouble with articles? Follow this easy-to-use lesson with grammar exercises for determining whether to use a vs an.

In English, we use two small words called indefinite articles to talk about singular nouns: a and an. These words are important because they help us talk about one thing.

Articles A and An - Exercises and Quiz

These exercises focus on articles and their usage

 

What Are A and An?

Both a and an mean "one" of something, but we use them in different situations. Here’s how to know which one to use:

  1. A: Use a before words that start with a consonant sound.

    • Example: a book, a car, a dog

  2. An: Use an before words that start with a vowel sound (a, e, i, o, u).

    • Example: an apple, an elephant, an umbrella

Illustration of Indefinite Articles: A and An

Basic Rules for Using A and An

Use A Before:

Use An Before:

Words that start with a consonant:

Words that start with a vowel:

a cat

an orange

a house

an egg

a pencil

an idea

a ball

an hour (silent "h")

How to Choose Between A and An

To decide if you should use a or an, listen to the sound of the word, especially the first letter.

  1. A: If the word starts with a consonant sound (b, c, d, etc.), use a.

    • Example: I have a pen.

  2. An: If the word starts with a vowel sound (a, e, i, o, u), use an.

    • Example: She ate an ice cream.

Common Examples

Word

Correct Article

Example Sentence

Dog

a

This is a dog.

Apple

an

I see an apple.

Car

a

He drives a car.

Elephant

an

We saw an elephant.

Chair

a

She sat on a chair.

Egg

an

I ate an egg for breakfast.


Special Cases to Remember

  1. Silent "H": If a word starts with a silent "h" (you don’t hear the "h"), use an.

    • Example: an hour (the "h" is silent, so it sounds like "our").

  2. Words with "U" and "O" Sounds:

    • Use a when "u" sounds like "you".

      • Example: a university, a uniform.

    • Use an when "u" sounds like "uh" or "o" sounds like "oh".

      • Example: an umbrella, an honor (silent "h").

Common Errors and How to Fix Them

  1. Using the wrong article with vowel sounds:

    • Incorrect: I see a elephant.

    • Correct: I see an elephant.

  2. Forgetting the rule for silent "h":

    • Incorrect: It takes a hour.

    • Correct: It takes an hour.

Everyday Practice with A and An

You can use a and an in many sentences when talking about one thing:

  • I have a book in my bag.

  • She bought an orange from the store.

  • There is a cat under the table.

  • He wants an ice cream.

FAQ

What’s the difference between "a" and "an"?

A is used before words that start with a consonant sound (like "b" or "c"), and an is used before words that start with a vowel sound (like "a" or "e").

Can I use "a" with "apple"?

No, "apple" starts with a vowel sound, so you need to use an: "an apple."

Why do we say "an hour" but "a house"?

"Hour" has a silent "h", so it starts with a vowel sound, making it "an hour." "House" has a strong "h" sound, so it is "a house."

Do I always use "a" with "university"?

Yes, because "university" starts with a "you" sound, not a vowel sound. So, it’s "a university."

How can I practice using "a" and "an"?

Practice by looking at things around you and saying "a" or "an" before them. For example, "a chair", "an apple", "a computer", "an orange."

Follow us
Free grammar and vocabulary exercises, ESL worksheets, lesson plans, tests and tools for students and teachers
@ 2025 PushtoLearn