Articles include a, an, the.
- A is used when we are talking about a single and joint thing — for example- a car.
- An - To know about the use of a first we should come to know about vowels. I think you all know that From all English alphabets only 5, i.e., a, e, i, o, u are vowels.
When any word starts with the sound of vowels, that is, above five alphabets, we put an with it. For example - an umbrella.
- The is used for things which are unique or only one in for Example- The sun.