bist du am arbeiten
bist du am arbeiten ?
b ɪ s t WORD_BOUNDARY d uː WORD_BOUNDARY  a m WORD_BOUNDARY  a ɐ b aɪ t ə n WORD_BOUNDARY
b i s t WORD_BOUNDARY d u WORD_BOUNDARY a m WORD_BOUNDARY a r b e i t e n WORD_BOUNDARY