1. The indefinite articles in English with a and n, which are translated into Spanish as one one. They are used to refer to something or someone in singular.
2. We use a / an with a name or noun to talk about a member of a class. For example:
3. Carla lives in a nice big house
4. My uncle is an engineer
5. A kid phoned this morning
6. Lee is a chinese name
7. We use a / an when we describe people or things. For example:
