Here's why:
* Nominative: You
* Objective: You
* Possessive: Your/Yours
As you can see, "you" remains the same regardless of whether it's the subject, object, or possessive.
Other pronouns like "he," "she," "it," "we," and "they" have different forms for nominative and objective cases (e.g., he/him, she/her, they/them).