I don't know either
I do know either
pro:sub mod v adv
i don't know either.
aɪ WORD_BOUNDARY d oʊ n t WORD_BOUNDARY n oʊ WORD_BOUNDARY iː ð ə ɹ WORD_BOUNDARY
i WORD_BOUNDARY d o n ' t WORD_BOUNDARY k n o w WORD_BOUNDARY e i t h e r . WORD_BOUNDARY