1. INDEFINITE ARTICLES
1.1. A / AN
1.1.1. USE: BEFORE NOUNS THAT WE WANT TO INTRODUCE
1.1.1.1. EXAMPLES: a dog, a person, a place, a thing
1.1.1.1.1. AN: When the following word begins with VOWEL
2. DEFINITE ARTICLES
2.1. THE
2.1.1. USE: WHEN WE TALK ABOUT A SPECIFIC PERSON, PLACE OR THING EXAMPLE: this is THE park where I usually run. This is THE dog that was barking the other day.
2.1.1.1. USE: BEFORE THE SUPERLATIVE DEGREE EXAMPLE: THE best, THE smallest
2.1.1.1.1. USE: BEFORE ORDINAL NUMBERS EXAMPLE: THE fisrt one, The fourth one
3. OMISION OF ARTICLES
3.1. USE: WHEN TALKING ABOUT THINGS OR PEOPLE IN GENERAL EXAMPLE: People like travelling nowadays / Plants make their own food / Dinousours live long time ago
3.1.1. USE: NAMES OF STEETS, ROADS, CITIES, COUNTRIES EXAMPLE: I live at 24, High Road / I live in Manzanares
3.1.1.1. USE: WITH MANY NAMES OF IMPORTANT BUILDINGS EXAMPLES: I go to school everyday / I don´t like hospitals / I want to go to University
3.1.1.1.1. USE: WITH SPORTS, SCHOOL SUBJECTS EXAMPLES; I live football/ I love Science