Hi. <br/><br/>Our English teacher told us about the exception that we have to say <br/><br/>I am right this time, <b>aren't</b> I (instead of impossible amn't I) <br/><br/>However, I'd like to know which non-contracted form should I use. <br/><br/>I am right this time, am I not? (sounds logical to me) or <br/>I am right this time, are I not? (following from the previous exception). <br/><br/>And by the way, is <b>ain't</b> allowed? <br/><br/>Thanks.