The Articles a/an

1. Article "an"

1.1. Indefinite article(not specific object one of a number of the same objects) with vowels.

1.2. Examples

1.2.1. An apple

1.2.2. An owl

2. Indefinite Articles

3. Article "a"

3.1. Indefinite article(not specific object one of a number of the same objects) with consonants.

3.2. Examples

3.2.1. A dog

3.2.2. A factory