Check out Antecedents Matter by rogersgeorge. Here is an excerpt:
Let’s start with some rules
- An antecedent is a word toward the front of a sentence that a word farther along in the sentence (called the proform) refers to.
- Antecedents and proforms have to agree, which means they have the same grammatical form (both have to be singular or both plural, for…
The full article is available here.