I don't know neither
I do know neither
pro:sub mod v adv
i don't know neither .
aɪ WORD_BOUNDARY d oʊ n t WORD_BOUNDARY n oʊ WORD_BOUNDARY n iː ð ɚ WORD_BOUNDARY
i WORD_BOUNDARY d o n ' t WORD_BOUNDARY k n o w WORD_BOUNDARY n e i t h e r WORD_BOUNDARY