I'm not sure what he's doing
i'm not sure what he's doing .
aɪ m WORD_BOUNDARY n ɑː t WORD_BOUNDARY ʃ ʊ ɹ WORD_BOUNDARY w ʌ t WORD_BOUNDARY h iː z WORD_BOUNDARY d uː ɪ ŋ WORD_BOUNDARY
i ' m WORD_BOUNDARY n o t WORD_BOUNDARY s u r e WORD_BOUNDARY w h a t WORD_BOUNDARY h e ' s WORD_BOUNDARY d o i n g WORD_BOUNDARY