how often do you hafta do it
how often do you have do it
pro:rel adv v pro:per mod v pro:per
how often do you have to do it?
h aʊ WORD_BOUNDARY ɔ f ə n WORD_BOUNDARY d uː WORD_BOUNDARY j uː WORD_BOUNDARY h æ v WORD_BOUNDARY t ə WORD_BOUNDARY d uː WORD_BOUNDARY ɪ t WORD_BOUNDARY
h o w WORD_BOUNDARY o f t e n WORD_BOUNDARY d o WORD_BOUNDARY y o u WORD_BOUNDARY h a v e WORD_BOUNDARY t o WORD_BOUNDARY d o WORD_BOUNDARY i t ? WORD_BOUNDARY