Example sentences of "what have long been [verb] " in BNC.

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1 When FDA clearance comes through the final product in a portfolio of basic food ingredients will be in place — promising the transformation of what has long been regarded as one of Britain 's most boring businesses into a world beater .
2 The residents of Unity Flats are shrugging off the stigma of living in what has long been regarded as one of the city 's most undesirable areas .
3 Persinger 's hypothesis thus contains what has long been demanded of ufology : a theory capable either of validation or falsification .
4 So that was what I was doing in Baldersdale — looking for survivors in what has long been known to be a botanically rich area .
5 Their work also confirmed what had long been suspected : which is that the majority of creatures on Earth are insects , and most of them are beetles .
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