Example sentences of "has [vb pp] over [art] period " in BNC.
Next page| No | Sentence |
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| 1 | Priddle and Heywood ( 1980 ) regard antarctic lakes as forming an evolutionary series which has developed over the period of about 20 000 years since the ice-sheet was maximal ; this is in any case a convenient way of describing them . |
| 2 | Its share of total industrial activity has varied over the period but the figures for the late 1960s are representative . |
| 3 | This study examines specific resources — various types of labour , capital and materials — used by the hospital sector to quantify the degree of substitution that has occurred over the period 1951 to 1981 . |
| 4 | Answer guide : To provide a guide to the way in which a business has performed over a period of time . |
| 5 | In the case of the urban riots , it is the nature of the television coverage which is in essence inciting other young people in different parts of the country to civil disobedience , whereas in the case of football violence , the implication is that the perceived lack of moral leadership by the broadcasting corporations has led over a period of years to a general moral climate in this country which fails to provide adequate controls over the behaviour of the nation 's youth . |
| 6 | An examination of Figure 6.1 reveals that , whilst each of the groups considered has gained over the period 1979 — 89 ( due to the tax and benefit changes discussed above ) , the greatest gain was made by the richest tenth of the population . |
| 7 | CHESAPEAKE BAY Has created over a period of about 17000 years . |
| 8 | My belief is that our good practice has evolved over a period of more than 50 years and that it has developed in classrooms through the dedicated expertise of British teachers enjoying the relative freedom traditionally allowed within our education system . |
| 9 | The figures below show how credit use has changed over the period covered by these three surveys . |