we didn't touch it
we do touch it
pro:sub mod v pro:per
we didn't touch it .
w iː WORD_BOUNDARY d ɪ d n t WORD_BOUNDARY t ʌ t̠ʃ WORD_BOUNDARY ɪ t WORD_BOUNDARY
w e WORD_BOUNDARY d i d n ' t WORD_BOUNDARY t o u c h WORD_BOUNDARY i t WORD_BOUNDARY