- When pronouns are the subject of a sentence.
- When pronouns follow a state of being verb.
Objective case is used:
- When pronouns are the direct object, indirect object, or object of a preposition.
He gave her a flower.
He gave whom a flower?
He gave whoever walked through the door a flower.
Although the noun clause is the indirect object, the word whoever is the subject of the noun clause; therefore the subjective case of the pronoun who should be used.
A wall was between him and me
Him and me are objects of the preposition between. Avoid the temptation to use him and I.
To whom will he give the flower?Whom is the object of a preposition, so the objective case should be used. When diagrammed, the object of the preposition can be seen in the same spot as the indirect object.