I didn't know I for
I do know I for
pro:sub mod v pro:sub conj
i didn't know i for .
aɪ WORD_BOUNDARY d ɪ d n t WORD_BOUNDARY n oʊ WORD_BOUNDARY aɪ WORD_BOUNDARY f ɔː ɹ WORD_BOUNDARY
i WORD_BOUNDARY d i d n ' t WORD_BOUNDARY k n o w WORD_BOUNDARY i WORD_BOUNDARY f o r WORD_BOUNDARY