Example sentences of "over a [adj] period [modal v] " in BNC.

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1 That is , whether spaced out advertising — the " drip " — over a long period would work better than heavy advertising , the " burst " , concentrated into a short space of time .
2 A case report and clinical-epidemiological studies in patients who have misused anthranoid laxatives over a long period should be considered in a final risk assessment for colorectal cancer in man .
3 The cost of training at a summer school over a five-week period will vary with the different establishments , but the overall fee is likely to be around £700 ( 1990 prices ) , for all students , whether from Britain or overseas .
4 Occupational , family and residential histories over a twenty-year period will elucidate and Aberdonians ' relationship to and experience of the oil industry across generations .
5 Changes in level of depression associated with different employment histories over a five-year period will be studied .
6 First , the payment of this sum of money over a short period would have a considerable inflationary effect .
7 Firms with a sustained high level of exports over a longer period may provide further figures for consideration as a consistent exporter .
8 The examination of all the images produced during a particular period or of a selection of images over a longer period will often provide a good idea of how the relevant state or regime wished to represent itself .
9 Debt due for repayment within two years could be paid within five years , and debt due to be repaid over a longer period could be paid within eight years .
10 We recognise that to add value through successful exploration over a sustained period will require a continuing supply of quality new venture opportunities .
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