1. Use "A" article when the word begin with a consonant. If you use words and phrases such as 'ball', 'glass of water' you must use 'a'
2. Example:
2.1. A chair
2.2. A book
2.3. A computer
2.4. A library
3. Use "An" article when the word begin with a vowel. However, there are some exceptions. Nouns beginning with eu- or ur- require the indefinite article a.
4. Example:
4.1. An ice cream
4.2. An apple
4.3. An umbrella
4.4. An orange
5. La forma más fácil de aprender A AN THE / ARTICLES
