he doesn't know it
he do know it
pro:sub mod v pro:per
he doesn't know it .
h iː WORD_BOUNDARY d ʌ z ə n t WORD_BOUNDARY n oʊ WORD_BOUNDARY ɪ t WORD_BOUNDARY
h e WORD_BOUNDARY d o e s n ' t WORD_BOUNDARY k n o w WORD_BOUNDARY i t WORD_BOUNDARY