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

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1 The art of surviving is to understand how the system works not to be frightened by it , and to know when to seek more expert help .
2 Money and security can be a temptation , but you 've got to be firm and know when to turn off from what could be a blind alley . ’
3 Do n't get side-tracked too far , but on the other hand , follow any interesting lead , note down comments on usage of a word , and know when to stop an investigation that is not fruitful or makes you confused .
4 These groups need to be able to recognize problem drinking and its causes and effects , have a knowledge of the help required , be able to provide counselling and know when to seek more expert help .
5 As you build up your experiences over the years , you will develop almost a sixth sense and know when to medicate — and when to leave well alone .
6 Politics taught him the arts of learning quickly , bluffing and knowing when to shut up .
7 But staying in control and knowing when to stop is the key .
8 Inside the turret there were twelve small TV screens by means of which the guards monitored the approaches to the building and knew when to open the electric door .
9 If the potential rewards are high it is worth pursuing , but knowing when to stop is not easy , and formalized methods of planning are not always easy to apply .
10 Had this been any other occasion , he would have lowered his head respectfully and more or less closed his eyes , watching Bill Brice out of the corner of them so as to know when to open them again , and murmuring amen where appropriate .
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