no he escuchado nada
no he escuchado nada .
n o̞ WORD_BOUNDARY e̞ WORD_BOUNDARY e̞ s k u t̠ʃ a d o̞ WORD_BOUNDARY n a d a WORD_BOUNDARY
n o WORD_BOUNDARY h e WORD_BOUNDARY e s c u c h a d o WORD_BOUNDARY n a d a WORD_BOUNDARY . WORD_BOUNDARY