we don't hafta have
we do have have
pro:sub mod mod v
we don't have to have.
w iː WORD_BOUNDARY d oʊ n t WORD_BOUNDARY h æ v WORD_BOUNDARY t ə WORD_BOUNDARY h æ v WORD_BOUNDARY
w e WORD_BOUNDARY d o n ' t WORD_BOUNDARY h a v e WORD_BOUNDARY t o WORD_BOUNDARY h a v e . WORD_BOUNDARY