Example sentences of "over a period of [prep] " in BNC.
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| 1 | Broadly speaking , transformation into a common market was to be spread over a period of between 12 and 15 years , with a stepwise progression through stages of four years each . |
| 2 | Longer-term effects were studied in four young couples , three who normally slept about 8 hours every night , and one who slept 6.5 hours a night , who volunteered to attempt to reduce their sleep progressively to 4.5 hours a night over a period of between six and eight months . |
| 3 | At the present time the Council Tax Demands and payment voucher books are being printed , they will start to be issued by the Post Office from 20 April onwards over a period of about one week . |
| 4 | Erm we also wanted to implement a plan er and this is an ongoing er situation of admitting er young blood to the partnership over a period of of erm five years or so , again that 's a rolling programme |
| 5 | It was not surprising that the amount spent on exploration sank from $760 million in the still relatively fat year of 1979 to between $120 and $150 million at the end of the 1980s and the size of known reserves remained static over a period of at least four years . |
| 6 | A number of working groups have been set up by the Council to look at these matters , but the truth is that the whole curriculum approach is rendered horrendously difficult by the subject structure and by the inevitable fact that the various subject working party reports are coming on stream over a period of at least four to five years . |
| 7 | The Library Association has thus taken a consistent position on censorship over a period of at least 25 years . |
| 8 | This means measuring , over a period of at least one week , the defined problem behaviour ( PB ) and the competing behaviour ( CB ) . |
| 9 | Bedwetting baselines are best set over a period of at least 2 weeks because of the often intermittent nature of the problem . |
| 10 | Struck at such moments as the end of a verse , these enhanced the impact of rituals performed to promote harmony and enhance the dignity of the state over a period of at least three millennia from the Shang to the Qing dynasties . |
| 11 | By a notice of motion dated 14 February 1992 the local authority appealed against those parts of the order which directed that there should be no contact between the father and the girl until after the local authority review and that there should be supervised contact between the girl and her half-sister , on the grounds that ( 1 ) the justices had been wrong in law in failing to invite the parties to comment on the agreed proposals for contact ; ( 2 ) the justices had been wrong in law in failing to indicate to the parties the nature of the orders for contact which they proposed to make , thereby depriving the parties of the opportunity to make submissions relating to those proposals ; ( 3 ) the justices had wrongly exercised their discretion in authorising the local authority to refuse contact to the girl by the father for only six months when they had found as a fact , inter alia , that the father had abused the girl over a period of at least 18 months ; ( 4 ) the justices had been wrong to impose the condition of supervision on contact between the girl and her half-sister when there had been no application for such contact to be supervised , the evidence was that the half-sister had been enjoying unsupervised contact and that there was no evidence that there was any risk of the girl coming into contact with her father while having contact with her half-sister , and the justices had heard evidence that the local authority were considering placing the girl with her half-sister and by their order they had precluded the local authority from making such a placement and had fettered the discretion of the local authority ; and ( 5 ) the order was therefore contrary to the girl 's best interests . |
| 12 | In parallel , and in the shorter-term , acceptance will still be possible for those over 30 years of age with appropriate and verified management experience over a period of at least five years . |
| 13 | The particular contribution of the teaching of French to pupils ' perceptions will be explored through observation by a researcher based in the two schools over a period of at least six months . |
| 14 | After that going for gold involves participating in a wide range of activities over a period of at least 18 months . |
| 15 | Over a period of at least three years , participants complete a range of activities closely related to their own development needs . |
| 16 | Over a period of at least two years participants complete a range of activities closely related to their own development needs . |