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

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1 IT IS sometimes difficult to remember that company directors are merely the custodians of their shareholders ' money , rather than the owners of the business free to do with it what they will .
2 But they vary considerably in their anatomy and , as is often the case when considering the simpler members of a group , it is sometimes difficult to decide whether a characteristic represents a truly primitive survival or is secondarily reduced to suit a particular way of life .
3 Although it is sometimes difficult to decide how an objective can be measured , an obvious objective can be cited in terms of increased sales , although it is sometimes difficult to determine whether such an increase in sales was due to PR activity or to some other marketing activity .
4 Fact is frequently mixed with opinion and it is sometimes difficult to establish whether certain evidence is accepted or is merely being discussed .
5 It is sometimes difficult to know whether the purchaser has done an act adopting the transaction .
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