Example sentences of "[v-ing] at time of " in BNC.

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1 With age , these colours fade , the black becoming grey over a beige/green background , but then returning at times of aggression and display , which are quite regular .
2 The third source of signals , autonomic nervous activities , was first noticed by Darwin , although their nervous control was not then known ; he instanced shivering at times of fear in humans .
3 In this final session Margaret was encouraged to explore possible ways of coping at times of further crises .
4 We can not directly relate bidirectional reflectance and biomass except when biomass changes independently of LAI , e.g. leaf thickening at times of high LAI , or , more commonly , when biomass is linearly related to LAI .
5 They can now offer some material aid , including at times of emergency some cash assistance .
6 Of course , investing at times of depression creates additional demand .
7 Although creeks are thought to be largely areas of non-deposition rather than areas of erosion , the scour of the tide along them may cause some lateral erosion and water draining at times of very high tides from areas behind the zone of creeks may plunge into the heads of the creeks and so cause a certain amount of headward erosion .
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