we have to do what
we have to do what
pro:sub v inf v pro:int
we have to do what ?
w iː WORD_BOUNDARY h æ v WORD_BOUNDARY t ə WORD_BOUNDARY d uː WORD_BOUNDARY w ʌ t WORD_BOUNDARY
w e WORD_BOUNDARY h a v e WORD_BOUNDARY t o WORD_BOUNDARY d o WORD_BOUNDARY w h a t WORD_BOUNDARY