when was he here
when be he here
conj cop pro:sub adv
when was he here ?
w ɛ n WORD_BOUNDARY w ʌ z WORD_BOUNDARY h iː WORD_BOUNDARY h ɪ ɹ WORD_BOUNDARY
w h e n WORD_BOUNDARY w a s WORD_BOUNDARY h e WORD_BOUNDARY h e r e WORD_BOUNDARY