he's walking up the stairs
he walk up the stair
pro:sub part prep det:art n
he's walking up the stairs .
h iː z WORD_BOUNDARY w ɔː k ɪ ŋ WORD_BOUNDARY ʌ p WORD_BOUNDARY ð ə WORD_BOUNDARY s t ɛ ɹ z WORD_BOUNDARY
h e ' s WORD_BOUNDARY w a l k i n g WORD_BOUNDARY u p WORD_BOUNDARY t h e WORD_BOUNDARY s t a i r s WORD_BOUNDARY