I think that happens
I think that happen
pro:sub v pro:dem v
i think that happens .
aɪ WORD_BOUNDARY θ ɪ ŋ k WORD_BOUNDARY ð æ t WORD_BOUNDARY h æ p ə n z WORD_BOUNDARY
i WORD_BOUNDARY t h i n k WORD_BOUNDARY t h a t WORD_BOUNDARY h a p p e n s WORD_BOUNDARY