il restait tout gris
il rester tout gris
pro:sub v n n
il restait tout gris ?
i l WORD_BOUNDARY ʁ ɛ s t ɛ WORD_BOUNDARY t u WORD_BOUNDARY ɡ ʁ i WORD_BOUNDARY
i l WORD_BOUNDARY r e s t a i t WORD_BOUNDARY t o u t WORD_BOUNDARY g r i s WORD_BOUNDARY