Grammatically Correct: The writer's essential guide to punctuation ...

Pronouns
Pronouns-stand-ins for nouns-are frequent stumbling blocks in
English. We all know that a bull is he, a toaster is it and something
that belongs to the Joneses is theirs, but some constructions are
considerably dicier. This section looks at the following issues:
• Using the correct form of a pronoun
• Ensuring that a pronoun refers to the right antecedent
• Ensuring that a pronoun agrees with its antecedent
USING THE CORRECT FORM
For many weeks he pressed in vain
His nose against the window-pane,
And envied those who walked about
Reducing their unwanted stout.
None of the people he could see
"Is quite" (he said) "as fat as mel"
Then, with a still more moving sigh,
"I mean" (he said) "as fat as II"
A.A. MILNE, When We Were Very Young
Pronouns, unlike nouns, change form (case) depending on what
role they play in a sentence. You would say Ethelbert gave a CD
player to Henrietta and Henrietta gave a CD player to Ethelbert,
but if the names were replaced by pronouns, these sentences would
be He gave a CD player to her and She gave a CD player to him.
There are three cases: subjective, objective and possessive. A
pronoun that represents the actor in a sentence is called the subject
and takes the subjective case: for example, l will be late. A pronoun
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