timmeister37 said:
My purpose on this thread is to get a deep understanding of the rules as to which pronoun case to use. I will share this information with everyone on the thread who wants to know as soon as i acquire it.
The rule is fairly simple: If a pronoun is in the subject, use the subjective or
nominative case: I, he, she, we, they, who. I'm borrowing this term,
nominative case, from other languages with inflected noun and pronoun forms, such as Latin, German, Russian, and all other Slavic languages.
If a pronoun is an object, either direct or indirect, use the objective form: me, him, her, us, them, whom.
The two rules above cover most situations.
A special case is a linking verb, which includes all forms of to be and a few others, that is used with a pronoun. In formal English, the answer to the question "Who is there?" would be "It is I". The less formal "It is me" is commonly used, but would raise objections from strict grammarians.
Another special case is a prepositional phrase, in which a more-or-less complete sentence (a clause) follows a preposition. For example, should I use whoever or whomever in this sentence? "I will give $20 to _____________ helps me find my lost keys."
The correct choice here between whoever and whomever is
whoever, because whoever is the subjective form that acts as the subject in the clause following the preposition "to."
In contrast, "I will give $20 to whomover." would be correct for this example, since whomever is not the subject of a clause (and in fact never can be the subject, any more than him, her, us, or them could be.
This business with pronouns in prepositional phrases/clauses is about as sticky as pronoun rules get. I would bet that less than 50% of native English speakers would know this.