he did it he did it
he do it
pro:sub mod pro:per
he did it he did it .
h iː WORD_BOUNDARY d ɪ d WORD_BOUNDARY ɪ t WORD_BOUNDARY h iː WORD_BOUNDARY d ɪ d WORD_BOUNDARY ɪ t WORD_BOUNDARY
h e WORD_BOUNDARY d i d WORD_BOUNDARY i t WORD_BOUNDARY h e WORD_BOUNDARY d i d WORD_BOUNDARY i t WORD_BOUNDARY