tu as travaillé à quoi
taire avoir travailler à quoi
part v:aux part prep pro:rel
tu as travaillé à quoi ?
t y WORD_BOUNDARY a WORD_BOUNDARY t ʁ a v a j e WORD_BOUNDARY a WORD_BOUNDARY k w a WORD_BOUNDARY
t u WORD_BOUNDARY a s WORD_BOUNDARY t r a v a i l l é WORD_BOUNDARY à WORD_BOUNDARY q u o i WORD_BOUNDARY