Here's an example:
* She went to the store.
In this sentence, "she" is the pronoun, and its antecedent is "the person we are talking about" (which is implied but not explicitly stated).
Let's look at another example:
* The dog wagged its tail.
Here, "the dog" is the antecedent of the pronoun "its".
Key points about antecedents:
* Pronouns must agree with their antecedents in number (singular/plural) and gender (masculine/feminine/neuter).
* Antecedents must be clear and unambiguous.
* Sometimes, antecedents can be implied by the context of the sentence.