Three Pronoun Cases

English has three important pronoun cases:

1. Subjective case—a pronoun is the subject of a verb.
   We will boil these eggs.
2. Objective case—a pronoun is the object of a verb or a preposition.
   You can boil them in this pot.
3. Possessive case—a pronoun expresses ownership.
   Don’t boil my eggs too long.