hi, I want to know if this is the right way to phrase this sentence<br/><br/>"I told you what it meant already. Why are you asking me again?"<br/><br/>Is meant used here or should it be mean?<br/><br/>Also..<br/><br/>I would have yelled at him if he hadn't passed the exam.<br/><br/>Should I use didn't or hadn't?<br/><br/>Thank you, English teachers.