Example sentences of "[verb] [noun sg] [noun pl] has [be] [vb pp] " in BNC.

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1 A simpler realization of the Geroch group of transformations which is specifically applied to colliding wave solutions has been found by Ernst , García-Díaz and Hauser ( 1987 b ) .
2 In the Labour Code , no legal obligation to provide nursery facilities has been included and only in recent years has a clause been added to the effect that the state will regulate the obligation of employers to maintain nurseries ( Art .
3 A MECHANISM by which Alzheimer 's disease , scrapie and mad cow disease kill brain cells has been identified .
4 The publication of government maps showing which power stations most need the installation of equipment to curb acid emissions has been withheld until after share applications for the two electricity companies have been tendered .
5 Transient absorption spectroscopy using femtosecond pulses has been applied very successfully to the photodissociation and predissociation of ICN and NaC1 .
6 Equipment to monitor nitrogen oxides has been installed at a number of sites , including Wilton recreation club , in a jointly funded venture between ICI , Langbaurgh Borough Council , Enron and British Steel .
7 Older embryos and more extended cultures benefit from a rotating system and , judging from the experience with rat embryos , the same is probably true for primitive streak stage embryos , although no direct comparison between static and rotating culture systems has been undertaken at this stage in the mouse .
8 A formal storage model using network structures has been developed [ 8 ] but this omits many of the activities .
9 The UK government 's strategy for reducing carbon emissions has been attacked by environmentalists , who argue that it places too much reliance on voluntary action by industry and the presumed effect of market forces , and that it pays scant attention to the need for research into energy efficiency .
10 The assumption that transformations represent paraphrase relations has been undermined , for example , by consideration of cases in which the passive and deletion transformations illustrated in [ 4 ] and [ 7 ] do not preserve the same " logical content " : Many arrows did not hit the target The target was not hit by many arrows .
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