I'm not sure if he changed it
I not sure if he change it
pro:sub neg adj conj pro:sub v pro:per
i'm not sure if he changed it .
aɪ m WORD_BOUNDARY n ɑː t WORD_BOUNDARY ʃ ʊ ɹ WORD_BOUNDARY ɪ f WORD_BOUNDARY h iː WORD_BOUNDARY t̠ʃ eɪ n d̠ʒ d WORD_BOUNDARY ɪ t WORD_BOUNDARY
i ' m WORD_BOUNDARY n o t WORD_BOUNDARY s u r e WORD_BOUNDARY i f WORD_BOUNDARY h e WORD_BOUNDARY c h a n g e d WORD_BOUNDARY i t WORD_BOUNDARY