we don't hafta read it
we do have read it
pro:sub mod mod v pro:per
we don't hafta read it .
w iː WORD_BOUNDARY d əʊ n t WORD_BOUNDARY h a f t ə WORD_BOUNDARY ɹ iː d WORD_BOUNDARY ɪ t WORD_BOUNDARY
w e WORD_BOUNDARY d o n ' t WORD_BOUNDARY h a f t a WORD_BOUNDARY r e a d WORD_BOUNDARY i t WORD_BOUNDARY