I don't know who did it
I do know who do it
pro:sub mod v pro:int mod pro:per
i don't know who did it .
aɪ WORD_BOUNDARY d oʊ n t WORD_BOUNDARY n oʊ WORD_BOUNDARY h uː WORD_BOUNDARY d ɪ d WORD_BOUNDARY ɪ t WORD_BOUNDARY
i WORD_BOUNDARY d o n ' t WORD_BOUNDARY k n o w WORD_BOUNDARY w h o WORD_BOUNDARY d i d WORD_BOUNDARY i t WORD_BOUNDARY