I don't know what you heard
I do know what you hear
pro:sub mod v pro:int pro:per v
i don't know what you heard .
aɪ WORD_BOUNDARY d oʊ n t WORD_BOUNDARY n oʊ WORD_BOUNDARY w ʌ t WORD_BOUNDARY j uː WORD_BOUNDARY h ɜː d WORD_BOUNDARY
i WORD_BOUNDARY d o n ' t WORD_BOUNDARY k n o w WORD_BOUNDARY w h a t WORD_BOUNDARY y o u WORD_BOUNDARY h e a r d WORD_BOUNDARY