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