he ran very fast
he run very fast
pro:sub v adv adv
he ran very fast .
h iː WORD_BOUNDARY ɹ æ n WORD_BOUNDARY v ɛ ɹ i WORD_BOUNDARY f æ s t WORD_BOUNDARY
h e WORD_BOUNDARY r a n WORD_BOUNDARY v e r y WORD_BOUNDARY f a s t WORD_BOUNDARY