Example sentences of "[verb] it [been] [verb] [that] " in BNC.

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1 Only in the last ten or so years has it been realized that infection can be spread quite easily by these practices and may pose problems as far as treatment is concerned .
2 If so , has it been confirmed that they will pay full compensation for this privilege ?
3 D'Indy may be excused for missing the point of Rameau 's ‘ tied ’ and slurred crotchets : only in our own time has it been realised that these denote the kind of tremolo recently studied by Stewart Carter .
4 However , while there is extensive evidence of assortative mating ( O'Donald , 1980 ) , of the importance of plumage characteristics in courtship ( Williams , 1982 ) and of female preference for males who can defend superior breeding territories ( Pleszczynska , 1978 ) only very recently has it been demonstrated that consistent female choice for any continuous morphological character in males is an important source of variation in male reproductive success .
5 Rarely , though , has it been demonstrated that only one species is associated with dispersal , in contrast to several examples known of one-to-one pollinator-pollinated relationships .
6 Has it been said that they hope to repeat the experience or ?
7 Only recently has it been discovered that they come to these special places to gather specific minerals such as kaolin which neutralise the poison they have absorbed from the seeds they eat at this season of the year .
8 ‘ But do n't you think Sunil might have been in danger had it been realised that he had the run of the Admiral 's computer ? ’
9 The discussion about the service policeman 's job prospects might have been more sanguine had it been known that civil servants in Whitehall were reading a provocative paper on full employment policy .
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