did one fall off
do one fall off
v pro:indef v adv
did one fall off ?
d ɪ d WORD_BOUNDARY w ʌ n WORD_BOUNDARY f ɔː l WORD_BOUNDARY ɔ f WORD_BOUNDARY
d i d WORD_BOUNDARY o n e WORD_BOUNDARY f a l l WORD_BOUNDARY o f f WORD_BOUNDARY