have they fallen down
have they fall down
v pro:sub part adv
have they fallen down?
h æ v WORD_BOUNDARY ð eɪ WORD_BOUNDARY f ɔː l ə n WORD_BOUNDARY d aʊ n WORD_BOUNDARY
h a v e WORD_BOUNDARY t h e y WORD_BOUNDARY f a l l e n WORD_BOUNDARY d o w n ? WORD_BOUNDARY