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 ɑː t WORD_BOUNDARY aɪ m WORD_BOUNDARY n ɑː t WORD_BOUNDARY
i ' m WORD_BOUNDARY n o t WORD_BOUNDARY i ' m WORD_BOUNDARY n o t WORD_BOUNDARY