artículos indefinidos  a y an

1. NOT USED A / AN. We do not use a / an with names or nouns that are written in plural or are countless , because a / an means "one " . For example:

1.1. My grand parents are teachers (not...a teachers)

1.2. Would you like some bread? (not...a bread)

2. not use a / an with an adjective that this alone and without a noun. For example:

2.1. Carla is very good (Not Carla is a very good)

3. We do not use a / an with another determinant , as they can be my and your . For example:

3.1. She is a friend of mine (Not She is a my friend)

4. NOTE: As you can tell indefinite articles a and an mean the same , they are only used for different names or nouns. The article is used to names or nouns that begin with consonants. An article is used to names or nouns beginning with a vowel.

5. A / AN

6. We use a / an when we describe people or things. For example:

6.1. She is a doctor

6.2. My girlfriend is a beautiful woman

7. We use a / an with a name or noun to talk about a member of a class . For example:

7.1. Carla lives in a nice big house

7.2. My uncle is an engineer