Using Pronouns Correctly

Because a pronoun refers back to a noun or takes the place of that noun, you have to use the correct pronoun so that your reader clearly understands which noun your pronoun is referring to.
Therefore, pronouns should:
1. AGREE in NUMBER
If the pronoun takes the place of a singular noun, you have to use a singular pronoun.
If a student parks a car on campus, she has to buy a parking sticker.
(NOT: If a student parks a car on campus, they have to buy a parking sticker.)
REMEMBER: The words EVERYBODY, ANYBODY, ANYONE, EACH, NEITHER, NOBODY, SOMEONE, A PERSON, etc. are singular and take singular pronouns.
Everybody ought to do his best. (NOT: their best)
Neither of the girls brought her umbrella. (NOT: their umbrellas0
2. AGREE in PERSON
If you are writing in the "first person" (I), don't confuse your reader by switching to the "second person" (you) or "third person" (he, she, they, it, etc.). Similarly, if you are using the "second person", don't switch to "first" or "third".
When a person comes to class, she should have her homework ready.
(NOT: When a person comes to class, you should have your homework ready.)
Works Cited:
Handout from Radford University Writing Center
Under Operation of Ann Moser