tú has estado en la playa no
tú has estado en la playa no ?
t u WORD_BOUNDARY a s WORD_BOUNDARY e̞ s t a d o̞ WORD_BOUNDARY e̞ n WORD_BOUNDARY l a WORD_BOUNDARY p l a j a WORD_BOUNDARY n o̞ WORD_BOUNDARY
t ú WORD_BOUNDARY h a s WORD_BOUNDARY e s t a d o WORD_BOUNDARY e n WORD_BOUNDARY l a WORD_BOUNDARY p l a y a WORD_BOUNDARY n o WORD_BOUNDARY ? WORD_BOUNDARY