Here's why:
* Antecedent: An antecedent is the noun or noun phrase that a pronoun refers to. For example, in the sentence "The dog wagged its tail," "dog" is the antecedent of the pronoun "its."
* Indefinite pronouns: These pronouns refer to nonspecific or general things. They don't have a definite antecedent because they don't refer to a specific noun.
Here are some examples of indefinite pronouns:
* Someone: "Someone is at the door."
* Everyone: "Everyone is invited to the party."
* Something: "Something is wrong with the car."
* Anything: "I didn't see anything."
* Nothing: "Nothing could stop them."
* All: "All are welcome."
* Some: "Some people like to read."
* Many: "Many people live in this city."
* Few: "Few people know the answer."
* None: "None of them came to the meeting."
Indefinite pronouns often refer to groups or quantities, and they can be singular or plural depending on their meaning.