who's coming to visit us
who come to visit us
pro:rel part inf v pro:obj
who's coming to visit us ?
h uː z WORD_BOUNDARY k ʌ m ɪ ŋ WORD_BOUNDARY t ə WORD_BOUNDARY v ɪ z ɪ t WORD_BOUNDARY ʌ s WORD_BOUNDARY
w h o ' s WORD_BOUNDARY c o m i n g WORD_BOUNDARY t o WORD_BOUNDARY v i s i t WORD_BOUNDARY u s WORD_BOUNDARY