What is the difference between nominative, objective, and possessive pronoun cases?

Nominative, objective, and possessive pronoun cases are different forms of pronouns that serve different grammatical functions in a sentence.

1. Nominative pronouns: These pronouns are used as the subject of a sentence or clause. They include pronouns such as "I," "you," "he," "she," "it," "we," and "they." Nominative pronouns are used when the pronoun is performing the action or being described in the sentence. For example, in the sentence "She is going to the store," the pronoun "she" is in the nominative case as it is the subject of the sentence.

2. Objective pronouns: These pronouns are used as the object of a verb or preposition in a sentence. They include pronouns such as "me," "you," "him," "her," "it," "us," and "them." Objective pronouns are used when the pronoun is receiving the action or being affected by it. For example, in the sentence "John gave me a book," the pronoun "me" is in the objective case as it is the object of the verb "gave."

3. Possessive pronouns: These pronouns indicate ownership or possession. They include pronouns such as "mine," "yours," "his," "hers," "its," "ours," and "theirs." Possessive pronouns are used to show that something belongs to someone or something. For example, in the sentence "The car is hers," the pronoun "hers" is in the possessive case as it shows ownership.

In summary, the difference between nominative, objective, and possessive pronoun cases lies in their grammatical functions within a sentence. Nominative pronouns act as the subject, objective pronouns act as the object, and possessive pronouns indicate ownership.