Example sentences of "have been [vb pp] [adv] at [adj] " in BNC.
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1 | The basic set-up consists of rather basic apparatus out of a school laboratory — battery , heavy water , metal electrodes and meters for heat or neutrons — which is so widely available that the discovery could have been made anywhere at any time in the preceding half century ; but somehow it has been overlooked by two generations of scientists until suddenly in 1989 not one but two groups in the same location simultaneously announce their breakthroughs . |
2 | Such comments about the DTI 's effectiveness as a corporate policeman could have been made almost at any time over the last 30 years and in a multitude of cases . |
3 | The whole Gdynia venture was only possible because of massive government preference , and there is little doubt that the port could not have been run indefinitely at such favourable rates . |
4 | Surely at least one would have been caught short at some point during the operation . |
5 | Thirty , forty years ago , that would not have been allowed to happen , and fifty years ago , the women would not have been allowed here at all . |