Indefinite article

1. I bought a car Compré un coche She saw an elephant. Vio a un elefante They have an idea. Tienen una idea. Do you have a pen?¿Tienes un bolígrafo?

1.1. More examples: Carla lives in a nice big house Carla vive en una casa grande y bonita My uncle is an engineer Mi tio es un ingeniero

2. Applications

3. Description: In general, the indefinite article a is used in front of a noun that begins with a consonant. The indefinite article an is used in front of a noun that begins with a vowel.

4. Rules

4.1. We use a / an with a name or noun to talk about a member of a class for example Lee is a chinese name Lee es un nombre Chino

4.2. We use a / an when we describe people or things for example: She is a doctor Ella es una doctora

4.3. We do not use a / an with nouns or nouns that are written in the plural or are uncountable, because a / an means "one". For example: My grand parents are teachers (not ... a teachers)