we don't need animals
we do need animal
pro:sub mod v n
we don't need animals .
w iː WORD_BOUNDARY d oʊ n t WORD_BOUNDARY n iː d WORD_BOUNDARY æ n ɪ m ə l z WORD_BOUNDARY
w e WORD_BOUNDARY d o n ' t WORD_BOUNDARY n e e d WORD_BOUNDARY a n i m a l s WORD_BOUNDARY