I'm not I'm not
I not I not
pro:sub neg pro:sub neg
i'm not i'm not.
aɪ m WORD_BOUNDARY n ɑ t WORD_BOUNDARY aɪ m WORD_BOUNDARY n ɑ t WORD_BOUNDARY
i ' m WORD_BOUNDARY n o t WORD_BOUNDARY i ' m WORD_BOUNDARY n o t . WORD_BOUNDARY