Common CELPIP errors - Pronoun-Antecedent Agreement

When I was studying for my CELPIP exam I got material from them. Unfortunately, I can not put the PDF to the public because it has a watermark with my personal email. But I can put you here what it says.

CELPIP's eighth error as they state:

A common CELPIP error is using pronouns that do not agree with the nouns they refer to (i.e., their antecedents). Pronouns and their antecedents need to agree. We say, “Return the books when they are due.” The pronoun they agree with its antecedent noun books in person (both are the third person) and number (both are plural).

In fact, pronouns can agree with their antecedents in four ways:

• Person: first, second, or third
• Number: singular or plural
• Case: subjective, objective, possessive, or reflexive
• Gender: masculine, feminine, either, or neuter

How to Choose a Pronoun that Agrees with Its Antecedents

Beware

Personal pronouns can replace a subject but should not repeat it.

• My dog he is sleeping.
• He is sleeping.

Possessive adjectives must agree with the owner, not what it is owned.

• Miguel is coming with her girlfriend.
• Miguel is coming with his girlfriend.

Good luck!