Articles a/an

1. correct use "an"

1.1. Use an before all words beginning with vowel sounds.

1.1.1. for example

1.1.1.1. an apple, an elbow, an Indian

1.1.1.1.1. Exceptions

2. It is an empty bottle

2.1. I have a delivery truck.

2.1.1. I have a watch in my room.

2.2. It is an ugly hotel.

2.2.1. It is an exception to the rule.

3. Examples of how to use a / an

4. Correct use "a"

4.1. Use a before all words beginning with consonant sound

4.1.1. for example

4.1.1.1. a pet, a door, a green onion, a cat, a hysterical joke.

4.1.1.1.1. Exceptions