I'm sure there isn't
I sure there be
pro:sub adv adv cop
i'm sure there isn't .
aɪ m WORD_BOUNDARY ʃ ʊ ɹ WORD_BOUNDARY ð ɛ ɹ WORD_BOUNDARY ɪ z ə n t WORD_BOUNDARY
i ' m WORD_BOUNDARY s u r e WORD_BOUNDARY t h e r e WORD_BOUNDARY i s n ' t WORD_BOUNDARY