Example sentences of "know [conj] if it [verb] " in BNC.

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1 And we only know that if it goes on for Monday afternoons for an hour , instead of
2 You know and if it did n't be paid you at the quarter it meant you di you would n't get anything the following quarter .
3 As I sat in the mouth of the cave looking out at the change in the weather , I wondered how a man in the Old Stone Age must have felt , staring out at the rain , knowing that if it did n't let up soon he 'd have to go out in it and knock a mammoth on the head for tea .
4 ‘ I felt guilty enough to want to help the marriage succeed because I 'd introduced them and had n't thought to warn Rachel , mainly because I did n't find him attractive myself and he 'd never come across as the great seducer with me , and I knew that if it did n't work , it would turn out to be a lifelong trap for her .
5 The machine knows that if it plays B it will be vulnerable to a reply that will leave it with fewer points than the least it can get by choosing A .
6 The badly shaken Wiltern knows that if it does , however , he will lose his one chance to nail the biggest cocaine supplier in Los Angeles .
7 The ego knows that if it has to make choices in the world of actuality it can not keep its cake and eat it too ; the id does not .
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