My New Mind Map

1. 1.use ´´an´´ with words beginning with vowel sound 2.use ´´a´´ and only singular nouns

1.1. A

1.1.1. a pencil

1.1.2. a TV

1.1.3. a clock

1.2. AN

1.2.1. an university

1.2.2. an E-Mail

2. what is a articles

2.1. According to the Oxford Dictionaries it is a determiner that introduces a noun phrase. a an are considered indefinite articles and they are used to introduce new concepts into a discourse

2.1.1. https://youtu.be/0QWI_29tFss