I haven't tried it
I have try it
pro:sub aux part pro:per
i haven't tried it .
aɪ WORD_BOUNDARY h æ v ə n t WORD_BOUNDARY t ɹ aɪ d WORD_BOUNDARY ɪ t WORD_BOUNDARY
i WORD_BOUNDARY h a v e n ' t WORD_BOUNDARY t r i e d WORD_BOUNDARY i t WORD_BOUNDARY