Example sentences of "[pron] [vb mod] not be certain that " in BNC.

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1 Once I noticed the familiar gap in a row of houses like the space left by a drawn tooth , but I could not be certain that it was the result of bombing and if it was it had happened a long time ago .
2 She could not be certain that Phoebe wanted her and needed her .
3 But although she said it she could not be certain that it was true .
4 She could not be certain that she wanted it to be true .
5 However , she could n't be certain that the more expensive kinds were there and could be actually obtained inside the shop .
6 For where it has been drawn is everywhere ; from the insistence of Thorndike , and the early behaviourists like Watson and Hull , that all is to be explained , including human behaviour , in terms of conditioned reflexes , to the open-handedness of well-meaning liberationists like Rollin who argue that even worms and sea anemones should be given the benefit of the doubt since we can not be certain that they do not feel pain and therefore have a consciousness ( 1981 : 31 ) .
7 Short of a series of studies which is designed directly to compare regional patterns , holding other variables constant , we can not be certain that any observed variations can be attributed to , say , people 's views about family responsibilities being different in the north-east of England from the prevailing norms in the south-west .
8 However , these are only projections of current trends and we can not be certain that current levels of morbidity will be reproduced by future generations of elderly .
9 Again this hope seems set against the tides of history , but again we can not be certain that a positive policy of Empire and tariffs could not have turned back the tide in 1902 or 1912 .
10 We can not be certain that Act 1 scene 1 of Q1692 was ever acted .
11 Of course , we can not be certain that Europe will succeed .
12 But we can not be certain that Gould even got as far as the river at all .
13 The weaker claim is that although one can not be certain that beneficial results will accrue , there are grounds for the probability that they will .
14 Democrats , whilst welcoming Bush 's retreat on the tax issue , argued that it was unreasonable to expect Democrats to associate themselves with spending cuts and tax increases , if they could not be certain that the President could hold his own party to such a deal .
15 This glider looked sturdy enough , but he could n't be certain that it would return to the ground safely .
16 He had even imagined that she mocked him with her smile , though he could not be certain that she had actually seen him there .
17 By March he was out again , and back at his office in Faber and Faber , although he was prudent enough to retire to bed early in the evening : with a complaint which had no organic cause , he could not be certain that he had been cured " .
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