<p>I've read a bunch of things about this topic and I still don't 100% "get it." I understand the basics for example "Mary is smarter than I" instead of "Mary is smarter than me" because I would add "am" to make it "Mary is smarter than I (am)." However, how would I figure out if I need a subject pronoun vs an object pronoun in this identifying errors question?</p>
<p>Because we (are) brothers, I don't think we (should) allow petty disagreements to come (between) you and (I). (No error)</p>
<p>Obviously the rest of the sentence is fine, but how do I know to use the object pronoun "me" instead of the subject pronoun "I" here?</p>
<p>Here’s a good strategy that I sometimes use- for instances like this, cross out “you and” and then plug in either “I” or “me” and see which one sounds correct. If you try it out, “me” should be used since “come between me” sounds more right than “come between I”. Just something that can sometimes comes in handy :)</p>
<p>If a pronoun comes a preposition, it should always be in the objective case. In the sentence you wrote, both “you” and “I” are supposed to be in their objective cases. Obviously the objective and subjective cases are same for the second-person pronoun “you,” but for “I” you have to use the objective case “me”… because well preposition.</p>