you don't know why
you do know why
pro:per mod v pro:rel
you don't know why ?
j uː WORD_BOUNDARY d oʊ n t WORD_BOUNDARY n oʊ WORD_BOUNDARY w aɪ WORD_BOUNDARY
y o u WORD_BOUNDARY d o n ' t WORD_BOUNDARY k n o w WORD_BOUNDARY w h y WORD_BOUNDARY