Articles and Negative Quantifiers

used when we want to talk about a person or thing for the first time or when other people may not know who or what they are

She bought a new book yesterday.

an associate degree in nursing

used when referring to a person or thing that was previously mentioned or one that is identified easily

The dog chased the cat up the tree.

used to indicate denial, refusal, or disagreement in response to a question or offer

Did you call her?— No.

used to indicate the absence of something or the complete lack of involvement

used to refer to an unspecified quantity or number, especially in questions or negatives

I don't have any idea what he's talking about.

the number zero, often used in sports or to indicate nothing

The final score was three nil.