I heard it go
I hear it go
pro:sub v pro:per v
i heard it go .
aɪ WORD_BOUNDARY h ɜː d WORD_BOUNDARY ɪ t WORD_BOUNDARY ɡ oʊ WORD_BOUNDARY
i WORD_BOUNDARY h e a r d WORD_BOUNDARY i t WORD_BOUNDARY g o WORD_BOUNDARY