Example sentences of "have [verb] [prep] [adj] periods " in BNC.

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1 Many of the indicators chosen are suspect , as Macnicol has shown for earlier periods , in that they simply count contact with state agencies , and it is a commonplace observation that the poor are more likely to be in contact with social workers because they are poor ( Becker , 1988 ) ; young drug-takers in inner cities are more visible than wealthy socialites but drug-taking and drinking stretch across social groups ( O'Bryan , 1989 ; Plant , 1989 ) ; desertion of women by husbands and the choice to remain unmarried are not restricted to the poor ; and so on and so on .
2 This state of affairs has resulted in long periods of civil war beginning soon after independence .
3 These former hot-spring systems may have formed during pluvial periods , when extensive lakes covered the rift valley and water tables were considerably higher than at present .
4 They may have different areas of expertise and will be able to concentrate on these without having to sit through lengthy periods when colleagues are asking questions about their own area of interest .
5 A biomaterial may also have to function for long periods of time in the body .
6 Women who were currently taking the pill or who had stopped taking it in the last 12 months had a significantly lower rate of endometriosis than those who had stopped for longer periods .
7 Many of the most committed Calvinists , who had wrestled for lengthy periods with the doctrine of predestination before finally convincing themselves of the assuredness of their salvation , reacted with fury and outrage to Arminius 's teachings , and in the United Provinces the resulting theological controversy provoked a major political crisis , culminating in the defeat of the Arminians at the Synod of Dort in 1618 .
8 I had never lived there , although in my early childhood I had stayed for short periods ( but then my mind was occupied in forming pictures ; the time had not yet come for looking at those pictures , for interpreting them ) .
9 Whatever benefits were conferred by the phenothiazines , they gave little help to patients who were suffering from excessive mood swings or who had entered into long periods of helpless depression .
10 Berg worked out his proportions deliberately , by design , in the same way as other composers have done in some periods since the Middle Ages .
11 Before trying to link the legal model of corporate managerial power to a particular conception of the company a sketch of three conceptions of the company which have vied at different periods for dominance in corporate law doctrine and scholarship will be given .
12 To investigate our rhythms , some individuals have lived for long periods in underground caves , cut off from sunlight .
13 The vast majority of these fish I have kept over long periods and know to be reliable , easy to keep and in the case of some , very long lived .
14 These have to operate for prolonged periods and are robust and solid pieces of equipment , for space and weight are not serious constraints .
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