If you are struggling with the use of articles (a, an, the) in English, here's a quick explanation: Articles are used to distinguish common nouns from proper nouns. For example If I say: I saw a cat. I saw the cat. It means that I saw the small feline animal. Cat here is a common noun. If I say: I saw cat. Since I didn't use an article, it means that I saw someone named "cat", not the small feline animal. Cat here is a proper noun.