I've been in Canada for more than 6 months as an American, they did not stamp my passport on entry, if I go back to the states now, will they let me come back to Canada? I mean how would they know I've been here for more than 6 months and not in the states for the past month or two? I assume they wouldnt do anything more then look at my passport if I went back to the states. I also heard I can still apply for further stay if I havent went more then 3 months past the visitation time limit?