how old is the boy
how old be the boy
pro:int adj aux det:art n
how old is the boy ?
h aʊ WORD_BOUNDARY oʊ l d WORD_BOUNDARY ɪ z WORD_BOUNDARY ð ə WORD_BOUNDARY b ɔɪ WORD_BOUNDARY
h o w WORD_BOUNDARY o l d WORD_BOUNDARY i s WORD_BOUNDARY t h e WORD_BOUNDARY b o y WORD_BOUNDARY