a estudiar vamos a estudiar
a estudia i a estudia
prepart inf v prepart inf
a estudiar vamos a estudiar .
a WORD_BOUNDARY e̞ s t u d j a ɾ WORD_BOUNDARY β a m o̞ s WORD_BOUNDARY a WORD_BOUNDARY e̞ s t u d j a ɾ WORD_BOUNDARY
a WORD_BOUNDARY e s t u d i a r WORD_BOUNDARY v a m o s WORD_BOUNDARY a WORD_BOUNDARY e s t u d i a r WORD_BOUNDARY . WORD_BOUNDARY