Example sentences of "[pron] knows for certain " in BNC.

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No Sentence
1 No one knows for certain how much the misuse of alcohol costs society , but it 's a great deal .
2 ‘ No one knows for certain , although plenty of theories have been put forward .
3 Half a million different laws ( although no one knows for certain how many ) have insured that the legal system is rigged , keeping the cost of formality far beyond the reach of the average small Peruvain entrepreneur .
4 You 'll not be denying what everybody knows for certain ? "
5 No-one knows for certain where she was going or what happened that summer of 1983 .
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