how many days has this happened
how many day have this happen
pro:int qn n aux det:dem part
how many days has this happened ?
h aʊ WORD_BOUNDARY m ɛ n i WORD_BOUNDARY d eɪ z WORD_BOUNDARY h ɐ z WORD_BOUNDARY ð ɪ s WORD_BOUNDARY h æ p ə n d WORD_BOUNDARY
h o w WORD_BOUNDARY m a n y WORD_BOUNDARY d a y s WORD_BOUNDARY h a s WORD_BOUNDARY t h i s WORD_BOUNDARY h a p p e n e d WORD_BOUNDARY