Example sentences of "[noun pl] [verb] [been] know [prep] " in BNC.

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1 THE action of alkali metals and their oxides as promoters for many catalytic reactions has been known for nearly a century .
2 The toxic nature of some animals has been known for a long time and man has utilised their venoms and poisons for various purposes .
3 As members will be aware , the Local Government Regions and Districts have been known for some time , and the areas of the Sheriffdoms were published at the beginning of the year .
4 Mass strandings have been known since the time of the ancient Greeks ; Aristotle himself recorded them .
5 Although the existence of nitrate pollution and its health implications had been known for decades , in the UK it was not thought to be much of a problem until 1984 .
6 In that year comparisons of Eliot with Pound were stimulated , and exacerbated , by the publication of what were called the ‘ drafts and transcripts ’ of The Waste Land ; that is to say , the heterogeneous packet of typescripts and manuscripts which Eliot had dumped on Pound in Paris , out of which Pound had helped Eliot to extricate the poem that for forty years had been known under that title .
7 Projectile weapons had been known from Roman times , but much of the technology was redeveloped during the crusades .
8 Other diuretics have been known for a long time , especially arsenical compounds of mercury .
9 The problem of toxics and blue-green algae had been known for a century in countries like Australia and the US where it occurred naturally .
10 Jersey cheques have been known to be sent to New Jersey for clearance ! ’
11 Although the link between social deprivation and road accident casualty rates has been known for some time , the scale of the problem has not been assessed either nationally or locally .
12 The effect of early experience on the mating preferences of birds and mammals has been known for a long time .
13 The research has been done for some time and the results have been known for some time , yet still the Government do nothing .
14 His activities had been known to some antislavery figures long before , but in 1814 his Mitigation of Slavery was published along with an extensive and favourable account by the Scots abolitionist William Dickson in the form of Letters to Thomas Clarkson .
15 Around forty of these drawings have been known for years from books and exhibitions , but as things are , I am the only person in the world at the moment to have complete knowledge of what that collection was in its entirety .
16 These letters have been known for some time , as the aggrieved Leone published them in a pamphlet in 1764 .
17 Formerly known as managing clerks , this body of employees has been known as legal executives since 1963 when the Institute of Legal Executives was established .
18 But we know very little about the animals which bore these scales and although a few articulated remains have been known for several years , they show very little anatomical detail and it is not easy to identify immediate relatives .
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