teacher didn't help anybody
teach do help anybody
n mod v pro:indef
teacher didn't help anybody ?
t iː t̠ʃ ɚ WORD_BOUNDARY d ɪ d n t WORD_BOUNDARY h ɛ l p WORD_BOUNDARY ɛ n ɪ b ɑː d i WORD_BOUNDARY
t e a c h e r WORD_BOUNDARY d i d n ' t WORD_BOUNDARY h e l p WORD_BOUNDARY a n y b o d y WORD_BOUNDARY