sometimes it does it sometimes it doesn't
sometimes it does it sometimes it doesn't .
s ʌ m t aɪ m z WORD_BOUNDARY ɪ t WORD_BOUNDARY d ʌ z WORD_BOUNDARY ɪ t WORD_BOUNDARY s ʌ m t aɪ m z WORD_BOUNDARY ɪ t WORD_BOUNDARY d ʌ z ə n t WORD_BOUNDARY
s o m e t i m e s WORD_BOUNDARY i t WORD_BOUNDARY d o e s WORD_BOUNDARY i t WORD_BOUNDARY s o m e t i m e s WORD_BOUNDARY i t WORD_BOUNDARY d o e s n ' t WORD_BOUNDARY