was willst du denn
was wollen du denn
pro mod pro:per adv
was willst du denn ?
v a s WORD_BOUNDARY v ɪ l s t WORD_BOUNDARY d uː WORD_BOUNDARY d ɛ n WORD_BOUNDARY
w a s WORD_BOUNDARY w i l l s t WORD_BOUNDARY d u WORD_BOUNDARY d e n n WORD_BOUNDARY