what did you buy
what do you buy
pro:int mod pro:per v
what did you buy?
w ɒ tʰ WORD_BOUNDARY d ɪ d WORD_BOUNDARY j uː WORD_BOUNDARY b aɪ WORD_BOUNDARY
w h a t WORD_BOUNDARY d i d WORD_BOUNDARY y o u WORD_BOUNDARY b u y ? WORD_BOUNDARY