Example sentences of "[verb] been [vb pp] [adv] since " in BNC.

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1 Although the term ‘ untrainable ’ may still be found in official classifications of mental handicap to describe the profoundly handicapped , it has been recognised officially since 1971 that no child is ineducable .
2 This has been recognised periodically since the 17th century .
3 As Marx ( 1989 ) has discussed , the science of genetic engineering has been developed only since the 1940s and especially since the 1970s , but its origins really began with the efforts of Charles Darwin and Gregor Mendel who , in the mid-nineteenth century , established the principles of heredity .
4 Some of the most significant work of industrial archaeology has been done here since 1959 , and the industrial buildings and relics of the district are in the hands of the Ironbridge Gorge Museum ( q.v . ) .
5 The direct tram service between Fleetwood and Blackpool has been maintained continuously since 1898 , with the single exception of winter 1963/4 when buses ran between Blackpool and Cleveleys .
6 It is , therefore , a site of some strategic significance in any military context , a fact which has been recognized continuously since Roman times , when , at least under Agricola if not before , a fort was established here .
7 It is easy to see how fertility has been kept low since the middle of the twentieth century , and how the control over its timing given by contraception could permit a new pattern of fertility fluctuation .
8 Slate has been quarried here since the fourteenth century , and continuously since at least Tudor times ; in those days there were many separate quarries extracting the valuable material for use as roofing , flooring , field walls and so on .
9 Disabled 17-year-old Vicky Hoey who also suffers from epilepsy has been devastated ever since Penny , a four-year-old Tibetan spaniel , escaped from the family home in Morecambe Street , Tuebrook , Liverpool , on Saturday .
10 The authorities in Bosnia-Hercegovina ( whose independence , proclaimed in March — see p. 38832 — had been recognized widely since early April — -see pp. 38848-49 ) repeatedly requested foreign military aid and there were warnings that a flood of refugees , both Moslems and ethnic Croats , could pose a serious problem for neighbouring countries .
11 Modern publications were consulted by readers much more frequently than older material : 85% of all issues were twentieth-century publications , and 42% had been published only since 1970 .
12 At his trial the magistrates urged that the Book of Common Prayer had been used ever since the time of the Apostles .
13 There were two projects on his mind : one was the little prose book which had been " clogging his system " , to employ another of his own phrases , since the mid-Forties , and the other was the new play which had been postponed effectively since 1939 .
14 Rallies had been held repeatedly since March 26 in Dushanbe , the capital , organized by the opposition parties calling for the resignation of the Supreme Soviet Chair , Sarafali Kenjayev .
15 The territory belonged to the King of Holland who was quite willing to part with it , and although the transfer would have meant the removal of a Prussian garrison which had been installed there since 1815 , Bismarck at first seemed indifferent to the transaction .
16 Others have vanished , like the rich abbey of St Jean d'Angely where the head of St John the Baptist had been venerated ever since its miraculous discovery in the mid-eleventh century .
17 Pressures on household and corporate borrowers have been eased significantly since last October by a series of interest rate reductions , which have reduced base rates by a cumulative four and a half percentage points to date .
18 Three Westinghouse designed PWRs have been built there since 1974 and a fourth will be running by 1985 .
19 Courses have been run continually since 1812 in this part of the Academy , and with its impressive frontage , parade square and greensward leading down to the lake , it dominates the grounds .
20 These have been kept only since 1822 .
21 These have been kept only since 1822 .
22 Deaths due to HIV infection have been recorded prospectively since 1988 .
23 Ospreys have been recorded annually since 1947 , except in 1948 , but since 1961 numbers have almost doubled .
24 The prizes , worth £1,500 each , have been awarded annually since 1919 on the recommendation of the Professor of English Literature at the University of Edinburgh .
25 This publication stems from one of the five seminars that have been held regularly since early 1979 in Edinburgh , convened by Dr Anthony Jackson .
26 Some half dozen new submarine cables have been laid annually since 1945 , the longest of which runs for 15,032km .
27 As you will know , the original proposals for National Testing of P4 and P7 pupils have been changed somewhat since last year .
28 Legal aid fees have been improved substantially since then .
29 Secondly , it is possible that the beach gravels have been eroded away since their formation .
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