Example sentences of "[to-vb] over a period of " in BNC.
Next page| No | Sentence |
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| 1 | And at times of new issues , they will often be committed to purchasing very large amounts of stock which they can only expect to sell over a period of weeks ; during which period they are exposed to the risk of capital loss if prices fall . |
| 2 | Although acrylic varnishes are dry in about 30 minutes , they continue to harden over a period of 24–48 hours , but here again this time may vary between different makes . |
| 3 | The pH does tend to drop over a period of time in bare tanks ( that is tanks without any substrate or plants . |
| 4 | Average response speed tended to decrease over a period of twenty minutes in sleep-deprived subjects , unlike in rested controls . |
| 5 | For this purpose the current research project has about ECU6 million to spend over a period of two and a half years . |
| 6 | Aim to collect over a period of time a variety of texts covering different types of oral literature , the formal and the informal , fiction and truth , narrative and exhortation , and so on . |