Example sentences of "difficult it is [verb] [adj] " in BNC.

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1 The controversy that has surrounded Brenner 's results illustrates how difficult it is to draw firm conclusions about the role of any one factor , such as unemployment , on a state as loosely defined as ‘ health ’ .
2 From then on he began to understand how difficult it is to control spastic muscles .
3 However difficult it is to measure short-term effects of library instruction , it is far more difficult to measure the long-term effects of the instruction given .
4 The obvious problem with information about credit is that , the more people need it ( that is , the groups shown above as most ill-informed about credit , and most likely to use unnecessarily high-cost credit ) the more difficult it is to make sure it reaches them .
5 In itself this elusiveness is testimony to just how enormously difficult it is to find practical solutions to Britain 's economic problems .
6 My chairman knows more than anyone how difficult it is to obtain good quality samples of natural conversational data .
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