il n' y a pas besoin
il ne y avoir pas besoin
pro:sub neg pro:y v:aux neg n
il n' y a pas besoin .
i l WORD_BOUNDARY  ɛ n WORD_BOUNDARY i WORD_BOUNDARY a WORD_BOUNDARY p a WORD_BOUNDARY b ə z w ɛ̃ WORD_BOUNDARY
i l WORD_BOUNDARY n ' WORD_BOUNDARY y WORD_BOUNDARY a WORD_BOUNDARY p a s WORD_BOUNDARY b e s o i n WORD_BOUNDARY