Example sentences of "[noun] [modal v] know when " in BNC.

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1 and the theatre must know when you 're actually going to see the , the show
2 This is a major issue , since not only must the control information be interpreted correctly , but the printer must know when the control characters have finished and it should start interpreting the following characters as text again .
3 Janice believes that children should know when they are going beyond what is acceptable and that a clear framework of conduct is necessary for a child 's proper development .
4 That day , Arnór Jarlaskáld had made one of his erratic descents upon Orkney , and the talk in the hall was worth listening to , as was the singing , but it was as well that the women should know when to leave .
5 From a theoretical point of view it does n't matter how long the game is ; the important thing is that neither player should know when the game is going to end .
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