when did you see them
when do you see them
conj mod pro:per v pro:obj
when did you see them ?
w ɛ n WORD_BOUNDARY d ɪ d WORD_BOUNDARY j uː WORD_BOUNDARY s iː WORD_BOUNDARY ð ɛ m WORD_BOUNDARY
w h e n WORD_BOUNDARY d i d WORD_BOUNDARY y o u WORD_BOUNDARY s e e WORD_BOUNDARY t h e m WORD_BOUNDARY