was muss da durch
was müssen da durch
pro mod adv prep
was muss da durch ?
v a s WORD_BOUNDARY m ʊ s WORD_BOUNDARY d aː WORD_BOUNDARY d ʊ ʀ ç WORD_BOUNDARY
w a s WORD_BOUNDARY m u s s WORD_BOUNDARY d a WORD_BOUNDARY d u r c h WORD_BOUNDARY