Example sentences of "[indef pn] [vb -s] [adv] been able " in BNC.

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1 No-one has ever been able to explain precisely why the tropical forests and coral reefs contain so many species , but the two habitats do have several obvious features in common .
2 The problem of evil has exercised people in all three traditions of historical monotheism and nobody has ever been able to find a logical way of reconciling it with the concept of the one God .
3 But nobody has ever been able to decide which .
4 No one has yet been able to stand up to that complex and refuse to give it the money .
5 But no one has yet been able to identify ‘ extra ’ income , and enterprises do not show it as a separate category .
6 While copyright cases have been won on the grounds that manuals , and other documents that go with software , have been copied , no one has yet been able to claim copyright on the syntax of a computer language .
7 I understand this theory and , while I am not able to disprove it , I feel that , in the light of all the research which has been done in more recent times , it leaves too many gaps which no one has yet been able to fill .
8 The word ‘ appears ’ is used advisedly because , although computers have been used to show that the equation does not work for values of n up to several thousand , no one has yet been able to prove for certain that there is no number n greater than 2 for which suitable values of x , y and z can not be slotted in to produce a valid equation .
9 The oak trees had not yet lost the vivid yellow-green of their late springtime , a colour so bright , so fresh and so unparalleled elsewhere in nature or in art that no one has ever been able to emulate it and it is never seen in paint or cloth or women 's dresses .
10 And in the depths of the forest , the humming is still strong , and the wind is still swirling all about us , and something is stirring , something that is so strong and so purely magical that no one has ever been able to resist it …
11 Many of us had our suspicions , but because he covered his tracks so well no one has ever been able to prove anything .
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