Example sentences of "[noun pl] have [vb pp] to be [adj] " in BNC.

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1 The WRAC recruits have proved to be excellent shots and many of the scores achieved would be the envy of their male counterparts .
2 Furthermore the structures of the lexical entries have tended to be proprietary to the system making it impossible to exchange lexicons between systems .
3 Until now period performances have tended to be abrasive and to whizz through the slow movements , making even the sublime Largo of the Double Concerto into a trivial siciliana .
4 The Australians have had to be content with the second favourites slot in front of their home crowd .
5 Retailers expect a bigger improvement in June , but their expectations have proved to be over-optimistic in the past two months .
6 Such national formations have continued to be important , but in the twentieth century there has been a marked development of certain kinds of ‘ international ’ — or , better , ‘ paranational ’ — cultural formation .
7 Most recent linguistic explanations have tended to be internal to linguistic theory : that is to say , some linguistic feature is explained by reference to other linguistic features , or to aspects of the theory itself .
8 Which places have grown to be major market towns in the central Pennines , and which river is each on ?
9 In The Art Newspaper No. 16 March 1992 p. 6 we published the fears of some art historians that this exhibition might have been infiltrated by fakes ; in the event these fears have proved to be groundless and the show has been enjoying great success .
10 No logical contradiction is involved in claiming that all observed ravens have proved to be black and also that not all ravens are black .
11 But training officers have learnt to be philosophical about such mishaps : " Some stay , some do n't , " they say .
12 Another problem according to Lewis ( 1983 , 149 ) is ‘ the lack of an adequate conceptual framework ’ and as a result ( 1983,149 ) : ‘ most rural studies have tended to be empirical and holistic , thus lacking comparability and depth ’ .
13 In this way general practitioners have begun to be involved in making decisions about effecting change in the balance of services between primary and secondary care and in establishing priorities for the types of services they wish to see delivered in the future .
14 Yet Dr. Elliott is elsewhere in print ( on the back of an Abbey Records LP ) as maintaining as almost certain that Carver composed the superb anonymous 6-Part Mass , ‘ Cantate Domino , ’ intimately related musically to Fera Pessima , which survives in partbooks from Lincluden ( Dr. Elliott has edited it from performance , and declared it ‘ shows more assured technical command ’ than Fere Pessima itself ) ; while the Carver Choirbook itself contains a fine anonymous 3-Part Mass which several scholars have suspected to be genuine Carver — and which is moreover largely in his hand .
15 ‘ Quite a few players have got to be worried and I include myself among them .
16 Implicit links have proved to be difficult for the machine to locate automatically but can be entered manually by the user in most hyper-text systems and in small-scale applications can provide very rich structures .
17 Fellows and Junior research fellows have continued to be active in their publications ( listed elsewhere in the report ) and in giving learned papers in all corners of the globe .
18 Many other insects have a shift in colour vision similar to the bee 's , and flowers have evolved to be attractive to their eyes .
19 The principal counter-argument has been that Essex has enjoyed the benefit of a former tutor-organiser as Federation chairman and that , in the absence of an equivalent person to give a lead elsewhere , tutor-organisers have continued to be essential .
20 Our attempts to reconstitute in vitro transcription from highly purified factors have proven to be inefficient , indicating that additional components , present in less pure fractions were required to facilitate efficient in vitro transcription .
21 Many women have learnt to be wary and to offer trust slowly .
22 Women have proved to be astute in business .
23 As regards time those involved in unification projects have learned to be patient and to think in decades rather than years .
24 It is , however , harder to explain purely in the context of the theory of contestable markets why some firms ' eurobond operations have continued to be successful while others have been unable to establish themselves , why there has been no significant decline in market concentration over time despite continual new entry , and why profitability has declined so steeply .
25 The same is true in cases where coins have ceased to be legal tender because of a change of political regime .
26 Numerous attempts have been made to stifle theories which some power-holders have found to be unpalatable but which have , over time , become more generally acceptable .
27 With the advent of computerised axial tomography ( CAT scan ) this is likely to be less of a problem in the future , but in the past researchers have had to be content with less sophisticated methods .
28 People not directly involved with a particular team can contribute suggestions which on several occasions have proved to be helpful . ’
29 … Its report restored to the public a sense of security , which had been badly shaken by Lord Hewart 's book , and which subsequent events have proved to be false .
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