Applications and rules for indefinite articles.

1. Indeterminate or indefinite articles indicate an unspecified noun or not known by the speaker.

1.1. Examples: a pear a dog a woman In my house there is a dog A cool morning Thieves robbed the bank

2. The indefinite article used before words beginning with a consonant or consonant sound; an indefinite article is used before words beginning with a vowel or vowel sound: A car, a house, a book, a desk, a computer. An envelope, an apple, an onion, an island, an umbrella.

3. A and an always used in singular. When we refer to certain nouns plural change ayan for indeterminate quantifiers. The most used they are: some, any and few:

3.1. Some students eat late. Any do the homework? Take a few pens of my desk. Other indefinite articles are: Other, someone, anyone, somebody, anybody, most. I come in other day. I wish find someone. Do you think there is anybody? Most of the wild birds flown away in winter.

4. https://www.youtube.com/watch?v=hauLap53iH0

5. 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.

5.1. Carla lives in a nice big house, Mi tío es un ingeniero.