What are the common pronoun case errors to avoid?

What are the common pronoun case errors to avoid?

The common pronoun case errors to avoid are:

1. Using the subjective case pronoun (I, he, she, we, they) instead of the objective case pronoun (me, him, her, us, them) in the object position of a sentence.
Example: "John invited Sarah and I to the party." (Incorrect)
Corrected: "John invited Sarah and me to the party."

2. Using the objective case pronoun (me, him, her, us, them) instead of the subjective case pronoun (I, he, she, we, they) in the subject position of a sentence.
Example: "Me and John went to the store." (Incorrect)
Corrected: "John and I went to the store."

3. Using the possessive pronoun (mine, his, hers, ours, theirs) instead of the possessive adjective (my, his, her, our, their) before a noun.
Example: "That book is mines." (Incorrect)
Corrected: "That book is mine."

4. Using the wrong pronoun case after a preposition.
Example: "The gift is for he and I." (Incorrect)
Corrected: "The gift is for him and me."