I don't believe that
I do believe that
pro:sub mod v pro:dem
i don't believe that .
aɪ WORD_BOUNDARY d oʊ n t WORD_BOUNDARY b ɪ l iː v WORD_BOUNDARY ð æ t WORD_BOUNDARY
i WORD_BOUNDARY d o n ' t WORD_BOUNDARY b e l i e v e WORD_BOUNDARY t h a t WORD_BOUNDARY