I don't think so
I do think so
pro:sub mod v co
i don't think so .
aɪ WORD_BOUNDARY d əʊ n t WORD_BOUNDARY θ ɪ ŋ k WORD_BOUNDARY s əʊ WORD_BOUNDARY
i WORD_BOUNDARY d o n ' t WORD_BOUNDARY t h i n k WORD_BOUNDARY s o WORD_BOUNDARY