I I really don't know
I I really do know
pro:sub pro:sub adv mod v
i i really don't know.
aɪ WORD_BOUNDARY aɪ WORD_BOUNDARY ɹ iə l i WORD_BOUNDARY d oʊ n t WORD_BOUNDARY n oʊ WORD_BOUNDARY
i WORD_BOUNDARY i WORD_BOUNDARY r e a l l y WORD_BOUNDARY d o n ' t WORD_BOUNDARY k n o w . WORD_BOUNDARY