he's working on this
he work on this
pro:sub part prep pro:dem
he's working on this .
h iː z WORD_BOUNDARY w ɜː k ɪ ŋ WORD_BOUNDARY ɔ n WORD_BOUNDARY ð ɪ s WORD_BOUNDARY
h e ' s WORD_BOUNDARY w o r k i n g WORD_BOUNDARY o n WORD_BOUNDARY t h i s WORD_BOUNDARY