Example sentences of "have been [verb] [prep] a period " in BNC.

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1 That structure of international regulation broke down in the 1970s and has been followed by a period of instability where it is uncertain whether US hegemony can be re-established or whether a different mode of regulation under Japanese or European domination will be constructed .
2 The nineteenth century has been seen as a period of transition from a largely amateur ‘ natural history ’ to a professionalized science of ‘ biology ’ .
3 The widespread acceptance of floating exchange rates has been associated with a period of less favourable economic developments , such as massive payments imbalances arising from large but often irregular oil prices increases , declining commodity prices ( which seriously affect less developed economies ) , high interest rates during the 1980s ( which worsened the debt position of many countries ) , and lower average economic growth compared with the Bretton Woods era .
4 This period of time has been described as a period of consensus .
5 Provided that if the Lease shall not have been granted within a period of 12 months from the date hereof the Tenant shall be at liberty to assign underlet or otherwise deal with the benefit of this agreement subject to the same conditions as would be applicable to a corresponding transaction if the Lease had then been granted
6 Withdrawal from southern England , therefore , may have been accompanied by a period of consolidation in the more immediately adjoining territories around the Mercian heartland , analogous to processes at work in northern and southern England .
7 Structural studies of the shales and greywackes of the Skiddaw Group have refined the understanding of the deformational history : the early episode of major slump folding identified previously now appears to have been followed by a period of upright folding that has been subsequently modified by south-directed thrusting .
8 Amis 's Stanley and the Women drew blood , for a time , from feminist opinion , and is said to have been blocked for a period from entry into the United States ; and Salman Rushdie 's Satanic Verses ( 1988 ) forced its author , a Muslim-born Indian , into hiding in 1989 for its alleged blasphemy against the Prophet .
9 It was understandably difficult for those whose views had been formed in a period of high unemployment to shift them radically and swiftly .
10 In a religiously-divided country such as the Netherlands , trade unions had been formed in a period of strong Protestant and Catholic religious revival when a socialist trade union movement was regarded as implying a secular view of society .
11 He hat eventually decided to ask Security 's registry and its computers for a trace muddling the trail by getting a colleague to send the request for him and burying it in a list of acronyms as if they had been collected over a period of time .
12 The official newspaper of the Communist Youth League had reportedly been criticized for publishing investigative reports against party orders , and its editors had been threatened with a period in the country .
13 A few months later , Harry Goodman responded with a full frontal attack , claiming that 9000 children in the care of the RCM had ‘ practically no Jewish contacts and that no effort had been made over a period of years to give these children some religious education ’ .
14 This support , he said , enabled the RNLI to follow such ambitious plans for the future and he emphasised that the year 's results had been achieved in a period of sharp recession and uncomfortably high inflation .
15 1n 1911 the ports had been prepared by a period of intensive propaganda for strike action and a " spontaneous " movement for a withdrawal of labour had followed .
16 AAIB investigation showed that the main rotor drive had been running for a period with the chain displaced downwards on the large sprocket ( ie.e in the axial direction of the sprocket ) approximately half a tooth .
17 It had been designed in a period of relative economic stability and was not fitted for such tumultuous times .
18 Of course not , they 've been elected for a period , they serve to the end of that period , whether they 're made redundant or not , so they go on for the four year term .
19 Embarrassed to some extent by their traditional association with the Soviet Union , but at the same time drawing their identity from it , the communist parties of Western Europe have been passing through a period of internal crisis and conflict .
20 From the enhanced provision of electronic delivery by the Document Supply Centre to a huge programme for retrospectively converting music , map and manuscript catalogues which have been created over a period of more than one hundred and fifty years , to the question of how to extend the provisions of the Copyright Act 1911 to include legal deposit of digital publications , the Library faces a formidable set of tasks arising from the electronic revolution .
21 Er improvement schemes and measures were identified and have been implemented over a period of time .
22 For determining whether the value and service potential of physical resources have been maintained during a period .
23 I note that the Opposition 's tax plans have gone back to the drawing board ; after five years of careful preparation , they have been ditched in a period of five weeks .
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