fuisteis en el tren no
fuisteis en el tren no ?
f w i s t eɪ s WORD_BOUNDARY e n WORD_BOUNDARY e l WORD_BOUNDARY t ɾ e n WORD_BOUNDARY n o WORD_BOUNDARY
f u i s t e i s WORD_BOUNDARY e n WORD_BOUNDARY e l WORD_BOUNDARY t r e n WORD_BOUNDARY n o WORD_BOUNDARY