I didn't I didn't know
I do know
pro:sub mod v
i didn't i didn't know .
aɪ WORD_BOUNDARY d ɪ d n t WORD_BOUNDARY aɪ WORD_BOUNDARY d ɪ d n t WORD_BOUNDARY n oʊ WORD_BOUNDARY
i WORD_BOUNDARY d i d n ' t WORD_BOUNDARY i WORD_BOUNDARY d i d n ' t WORD_BOUNDARY k n o w WORD_BOUNDARY