Example sentences of "[noun sg] [prep] a period of [noun pl] " in BNC.

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1 A child may appear before a hearing for reasons other than offences ; and he will have a disposal tailored to his needs for care rather than to the seriousness of the offence ; and a child may not only be put under a supervision requirement for reasons other than an offence , but he may remain under such a requirement for a period of years for reasons completely unconnected with breaches of the criminal law .
2 Birth parents may relinquish their child for adoption at the time of birth or at a subsequent date , possibly having cared for the child over a period of months or years .
3 After the grubs have eaten extensive ‘ galleries ’ in the wood over a period of years , with the resultant dust being emitted in bun-shaped pellets , the larva enters a pupal stage lasting three to six weeks and emerges as a fully grown beetle .
4 When such Stakhanovite chastity over a period of months finally coaxed some forlorn gesture of affection from the girl , he told her he wanted to get to know her better .
5 Anthropologists , for example , are able to interpret a culture , at first sight inexplicable to those from a different culture , by living with , talking to and observing people in a community over a period of years .
6 In LEAs where a scheme of delegation has been in place over a period of years , the question of making more money soon arises .
7 Spread is slow and extension may take place over a period of months , even years .
8 In Boston " mentoring " programmes exist where employers release a staff member on a regular basis over a period of months to work with potential " drop outs " to win their commitment .
9 A recent report by the National Radiological Protection Board ( NRPB ) said the iodine-131 may have killed 13 people through cancer of the thyroid over a period of decades .
10 But what will be the effect of extending the interval to a period of days or even weeks ?
11 If it is practicable to make repeated visits to the same site over a period of months or years a programme of capture/mark/release and recapture will add a further dimension to the whole range of topics available .
12 There is a spontaneous gradual recovery over a period of weeks or months and the protein concentration of spinal fluid becomes elevated .
13 The group says that the survival of evidence over a period of years defies expectations and improves the prospects for enforcement of the recently signed international Chemical Weapons Convention ( see Nature 361 , 105 ; 1993 ) .
14 The students spend a given amount of time per week for a period of months , with the guidance of an assigned individual in the company and with the support of the technical staff of the school or college .
15 A serious problem has emerged in the area over a period of months , and a series of reports have been issued , concluding with a report by the National Rivers Authority on effluent that is poured into the lagoons at Grassmoor 40,000 tonnes of it a year .
16 I hasten to add that when I was responsible , as Secretary of State for the Environment , for such developments in England , I found that , with certain conditions one could improve the environment over a period of years .
17 Your body may have become out of shape through general neglect over a period of years , yet you can transform it incredibly in a matter of days with my unique dieting methods and special exercises .
18 These convertible issues are convertible into the underlying equity at a fixed rate over a period of years and usually on certain dates in each year .
19 The fact that there is something quite new and of a different quality means that we will rapidly discard the old and move into the new , just as colour television sets were substituted for black and white , and created a very high growth rate over a period of years .
20 If you mark your weight on a graph or chart this should provide a clear and rewarding sign of progress over a period of weeks and months .
21 Spreading the annuity purchase over a period of years will average out rates over that period , but whether this will result in a bigger pension at the end of the day is highly speculative .
22 However in practice deterioration of stock inevitably sets in , through a variety of factors : original errors or omissions in selection ( for the reasons suggested above ) ; poor control of withdrawals and replacements ; fluctuations in funding over a period of years ; fluctuations in demand caused by changes in the constituency , or changes in their needs .
23 She had had to wean herself off the dope over a period of years , and still felt the occasional urge for a H-9 hit .
24 The fry are born with large black eyes , but these steadily reduce in size over a period of weeks until they are covered with a cartilaginous sheath .
25 For reasons which never seem quite convincing , given the tediousness of the material and the fact that the three do not even believe in it , this becomes an obsessive hobby over a period of years .
26 Taxes and public spending to be set to reach a ‘ savings target ’ for the nation over a period of years .
27 He must have a computerised brain to have absorbed all that information over a period of years without having compiled a ‘ silly tick list ’ himself .
28 You can work towards a degree or diploma over a period of years — or choose single courses lasting a few weeks or months , from an enormous list of topics ranging from childcare to computer science .
29 The Government retains a golden ( or " master " ) share in the newly-floated company which confers rights restricting other shareholders or potential shareholders from acquiring controlling stakes in the company for a period of years or indefinitely .
30 This share confers rights restricting other shareholders or potential shareholders from acquiring controlling stakes in the company for a period of years or indefinitely .
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