I'm sure they do
I sure they do
pro:sub adv pro:sub v
i'm sure they do .
aɪ m WORD_BOUNDARY ʃ ʊ ɹ WORD_BOUNDARY ð eɪ WORD_BOUNDARY d uː WORD_BOUNDARY
i ' m WORD_BOUNDARY s u r e WORD_BOUNDARY t h e y WORD_BOUNDARY d o WORD_BOUNDARY