Va ser dificil de fer
va ser dificil de fer .
ʋ a WORD_BOUNDARY s ɛ WORD_BOUNDARY ð i f i s i l WORD_BOUNDARY ð ə WORD_BOUNDARY f ɛ WORD_BOUNDARY
v a WORD_BOUNDARY s e r WORD_BOUNDARY d i f i c i l WORD_BOUNDARY d e WORD_BOUNDARY f e r WORD_BOUNDARY