Example sentences of "been [verb] to be [art] [adv] " in BNC.

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1 Cardiorespiratory problems , mostly sedation related , have been reported to be the most common complication of upper gastrointestinal endoscopy .
2 In fact , Dunrossness has long been considered to be the most fertile and agriculturally productive area in the whole of Shetland .
3 Although he had not formally announced his candidature Olympio , son of President Sylvanus Olympio who was himself assassinated in 1963 , had been expected to be a very popular presidential candidate .
4 However , this has not been seen to be a very effective set of policies .
5 Now C D thirty one is an endophilial cell adhesion molecule and the antibody has been shown to be the most specific marker of vascoendophilia and consistently in studies has stained more vessels than other markers .
6 It has been shown to be the most abundant neuropeptide in the central nervous system and is also widely distributed throughout the peripheral nervous system .
7 Moreover , by choosing an option that has been shown to be the best in terms of quality of life days gained general practitioners would be more certain that they were acting with beneficence ; at present , using simply their ‘ unaided intuitive judgment ’ to make such decisions , they can only hope that this is the case .
8 So that was what I was doing in Baldersdale — looking for survivors in what has long been known to be a botanically rich area .
9 The annual grass Lolium temulentum is a close relative of ryegrass and , for reasons of genetic uniformity and simplicity of life-cycle , has been found to be a much more suitable subject for fundamental studies of growth and development ( , , ) .
10 Hae III followed by Hind III have been found to be the most discriminatory restriction endonucleases with which to cut H pylori .
11 The concept of field dependence was first discussed by Witkin ( 1950 ) and has since been discovered to be a relatively stable trait of the individual .
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