you don't have to know
you do have to know
pro:per mod v inf v
you don't have to know .
j uː WORD_BOUNDARY d oʊ n t WORD_BOUNDARY h æ v WORD_BOUNDARY t ə WORD_BOUNDARY n oʊ WORD_BOUNDARY
y o u WORD_BOUNDARY d o n ' t WORD_BOUNDARY h a v e WORD_BOUNDARY t o WORD_BOUNDARY k n o w WORD_BOUNDARY