but we didn't buy him
but we do buy him
conj pro:sub mod v pro:obj
but we didn't buy him .
b ʌ t WORD_BOUNDARY w iː WORD_BOUNDARY d ɪ d n t WORD_BOUNDARY b aɪ WORD_BOUNDARY h ɪ m WORD_BOUNDARY
b u t WORD_BOUNDARY w e WORD_BOUNDARY d i d n ' t WORD_BOUNDARY b u y WORD_BOUNDARY h i m WORD_BOUNDARY