darf ich den kaufen
darf ich den kaufen ?
d a ɐ f WORD_BOUNDARY  ɪ ç WORD_BOUNDARY d eː n WORD_BOUNDARY k aʊ f ə n WORD_BOUNDARY
d a r f WORD_BOUNDARY i c h WORD_BOUNDARY d e n WORD_BOUNDARY k a u f e n WORD_BOUNDARY