Here's why:
* Pronoun Agreement: "Bob" is a masculine name, and "her" is a feminine pronoun. You need to use pronouns that match the gender of the nouns they are referring to.
* Clarity: Using "her" in this context could be confusing. It's unclear who "her" refers to.
Here are some grammatically correct alternatives:
* Bob and she: If you are referring to Bob and a female person.
* Bob and the woman: If you are referring to Bob and a woman.
* Bob and his wife: If you are referring to Bob and his spouse.
Example:
Incorrect: "Bob and her went to the park."
Correct: "Bob and she went to the park."