I don't know what it is
I do know what it be
pro:sub mod v pro:int pro:per cop
i don't know what it is.
aɪ WORD_BOUNDARY d əʊ n tʰ WORD_BOUNDARY n əʊ WORD_BOUNDARY w ɒ tʰ WORD_BOUNDARY ɪ tʰ WORD_BOUNDARY ɪ z WORD_BOUNDARY
i WORD_BOUNDARY d o n ' t WORD_BOUNDARY k n o w WORD_BOUNDARY w h a t WORD_BOUNDARY i t WORD_BOUNDARY i s . WORD_BOUNDARY