was musst du bauen
was müssen du bauen
pro mod pro:per v
was musst du bauen ?
v a s WORD_BOUNDARY m ʊ s t WORD_BOUNDARY d uː WORD_BOUNDARY b aʊ ə n WORD_BOUNDARY
w a s WORD_BOUNDARY m u s s t WORD_BOUNDARY d u WORD_BOUNDARY b a u e n WORD_BOUNDARY