Between you and me:
Object of a Preposition
The noun or pronoun that follows a preposition is called the object of the preposition. If a pronoun follows a preposition, it must be an object pronoun, not a subject pronoun. Consider the following examples.
|Nancy wrote a story about me.||Nancy wrote a story about Tracy and me.|
|James shouted at me.||James shouted at Mary and me.|
|Brenda talked to me.||Brenda talked to George and me.|
|Louise danced with me.||Louise danced with Tim and me.|
Between is also a preposition. When a pronoun follows between, it must also be an object pronoun.
|This is just between us.||This is just between you and me.|
Native English speakers often use between you and I instead of between you and me. This is called hypercorrection: substituting an incorrect form for a correct form that the speaker believes to be incorrect. This mistake may be due to confusing the use of subject pronouns after the verb to be, as in "It is I," or with the compound subject you and I as in "You and I are going to win the contest."
The student is advised to use the object forms of pronouns after a preposition.