The correct way to say it is "someone and I."
Here's why:
* Subject Pronouns: "Someone" and "I" are subject pronouns, used when the pronoun is performing the action in a sentence.
* Object Pronouns: "Me" is an object pronoun, used when the pronoun is receiving the action.
Examples:
* Correct: "Someone and I went to the store." (Both "someone" and "I" are performing the action of going)
* Incorrect: "The gift was for someone and me." (The pronoun is receiving the action of "for")
* Correct: "The gift was for someone and him." (The pronoun is receiving the action of "for")
A simple way to check:
If you remove "someone" from the sentence, would you say "me" or "I"? If you would say "I," then the correct form is "someone and I."