il est trop dur ce livre
il être trop dur ce livre
pro:sub v:aux adv adj pro:dem n
il est trop dur ce livre ?
i l WORD_BOUNDARY ɛ WORD_BOUNDARY t ʁ o WORD_BOUNDARY d y ʁ WORD_BOUNDARY s ə WORD_BOUNDARY l i v ʁ WORD_BOUNDARY
i l WORD_BOUNDARY e s t WORD_BOUNDARY t r o p WORD_BOUNDARY d u r WORD_BOUNDARY c e WORD_BOUNDARY l i v r e WORD_BOUNDARY