Example sentences of "have be known [verb] to " in BNC.

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1 Even the mighty ostrich has been known to resort to this form of deception .
2 Even Desmond Haynes has been known to succumb to ragging of that ilk , but he surely will have advised his county colleague that there is only one foolproof means of revenge .
3 A great formula has been known to appear to a scientist ready-made in a dream as though he were a Siberian shaman , but unlike the shaman he accepts it not on the authority of the dream but because afterwards it satisfies his most stringent tests .
4 It has a period of 357 days , and at minimum is so faint that large telescopes are needed to show it , but at maximum it has been known to rise to 5.7 , and is then just visible with the naked eye and very easy in binoculars .
5 His father had been killed two years before , and Mallachy had been known to refer to him , with his grim-eyed smile , as some sort of hero , a victim of the UFF or someone like them .
6 More adventurous dealers have been known to go to New York .
7 Many new members of an audience have been known to object to the applause greeting the last bow .
8 They have been known to swim to an offshore tern colony and kill dozens of chicks and adults in a single night .
9 People mainly fish for trout and salmon but other fish have been known to attract to the artificial flies .
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