I didn't hear any
I do hear any
pro:sub mod v qn
i didn't hear any .
aɪ WORD_BOUNDARY d ɪ d n t WORD_BOUNDARY h ɪ ɹ WORD_BOUNDARY ɛ n i WORD_BOUNDARY
i WORD_BOUNDARY d i d n ' t WORD_BOUNDARY h e a r WORD_BOUNDARY a n y WORD_BOUNDARY