Example sentences of "[noun pl] have been [adv] for some " in BNC.

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1 Mammal-like animals have been around for some 200 million years but did n't become particularly numerous until about 70 million years ago , around the time the dinosaurs became extinct .
2 It 's believed their bodies had been there for some time .
3 It 's believed their bodies had been there for some time .
4 Detectives are working on the theory that the bags had been there for some time .
5 Other English-speaking riders have been around for some years .
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