Example sentences of "[noun pl] over a [adj] period of " in BNC.

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1 The giant ground sloths and armadillos of the past were clearly South American in character , showing that this continent had been populated by unique families of animals over a vast period of time .
2 For example , the ceiling for relief could be reduced from £30,000 to zero in ten equal steps over a ten-year period of time .
3 In these respects , there has been a general and continuing decline in prison conditions over a long period of time ( King and McDermott , 1999 ) .
4 My own efforts over a long period of time , plus correspondence and telephone calls to various bodies have met with no success .
5 My own efforts over a long period of time , plus correspondence and telephone calls to various bodies have met with no success .
6 The best businesses over a long period of time have been the ones with a single thrust .
7 This may apply to a particular period or it may be concerned with changes over a long period of time .
8 Simulation has been used to predict population changes over a long period of time and for charting space-satellite trajectories .
9 The problem of consistency of measurement techniques over a long period of time will have to be faced and may not have a satisfactory solution .
10 Staggered working hours would spread travelling times over a longer period of the day and in many cases allow more efficient use of factories , offices , schools and the equipment therein .
11 The assistance on offer from Carers Impact comes in the form of small development teams which will work with health and local authorities over a sustained period of time .
12 In April responsibility for funding residential and nursing home care will be transferred from the Department of Social Security to local authority social services departments over a phased period of four years .
13 For instance it buys up stock which is nearing its redemption date , so as not to have to make large repayments over a short period of time .
14 Should you experience any of the symptoms over a prolonged period of time , it is always advisable to have a check-up to ensure that you do not have a condition which requires professional help .
15 The printed edition would be issued in fascicles over a limited period of time .
16 National expenditure is the actual amount of money spent on goods and services over a given period of time , whereas aggregate demand is the total value that households , firms , the government and foreigners plan to spend out of their respective incomes over that time period : in other words , it is the total amount they are willing and able to spend .
17 In accepting this offer , they agree to buy a certain number of books or records over a specific period of time ( eg four books a year ) .
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