Example sentences of "have been [vb pp] for many " in BNC.
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1 | Indeed , the role of fibrinogen in platelet aggregation has been recognised for many years ( Born & Cross , 1964 ; Brinkhaus et al , 1965 ) . |
2 | Salicylate nephrotoxicity has been recognised for many years . |
3 | ‘ Hemp has been grown for many years on the Continent and this decision will allow UK farmers to gain a share of the market currently occupied by our EC partners . ’ |
4 | In recent years , the Shetland summer season has been tainted for many of us by the knowledge that thousands of our sea-birds have failed to raise any young . |
5 | The conservation of the primary structure of ribosomal proteins across species has been documented for many other ribosomal proteins ( 2 ) . |
6 | Its bid to become a polytechnic has been supported for many years by Conservative Members from Derbyshire . |
7 | This approach , a very recent development for credit in this country ( though of course it has been accepted for many years as the basis of car insurance ratings ) , started in America . |
8 | This is the practice that has been followed for many years and by and large it has worked . |
9 | That Soviet ships dumped nuclear waste in the area has been suspected for many years . |
10 | This method has been taught for many years and I do not think that pilots who have learned to do it this way need bother to change . |
11 | The gall bladder epithelium has been considered for many years to be an excellent model for the study of the physiological properties of epithelial cells and in particular ion transport . |
12 | Boarding out ( or fostering ) has been practised for many years and the Curtis Committee on the care of children strongly urged that this should be the first choice in finding substitute homes . |
13 | The possibility of a connection between the disappearance of coronae and the onset of massive winds has been discussed for many years . |
14 | Salt has been used for many centuries as a preservative , whereby it is left on food to withdraw the moisture present by the process of osmosis . |
15 | The publication of correspondence between famous people has been used for many years for the purposes of scholastic enquiry . |
16 | The ERNIE machine is a modern computerized form of sampling by ‘ random numbers ’ which has been used for many years in research . |
17 | G. affinis is a small ( 4.6 cm long ) , surface-feeding minnow which originated in the United States and has been used for many years in many parts of the world to control mosquito larvae . |
18 | Let us begin by trying to understand the rationale for the system ; after all , it has been used for many years and must presumably have had some point to it . |
19 | It has been used for many years in traveller 's diarrhoea , as a colostomy deodoriser , and as an antispirochetal agent in syphilis . |
20 | These are in addition to applications in the detergents field , in which it has been used for many years . |
21 | Our system of construction has been used for many years all over this country , by the sponsoring authorities and others , and erm we do n't have the earthquake requirements , but we do need many high value schools both quickly and on time , and we 've completed something like 2,000 projects similar to this over many years . |
22 | To ‘ off-comed 'uns ’ it is not even a large village , with only 2,080 inhabitants , but to the native it is a town because it has held a market charter since 1223 and although no market has been held for many years , the charter was read once a year in the market place until 1939 . |
23 | Paraconductivity has been reported for many different compounds in various forms , but no consensus about the dimensionality in these materials has been reached . |
24 | Mr Bell said : ‘ My programme has been set for many weeks and every day is tied up . ’ |
25 | But for this House to depart from a rule relating to land law which has been established for many centuries might upset long established titles . |
26 | It has been known for many years that damage to the left hemisphere is more likely to affect language ability than damage to the right , suggesting that the left hemisphere is very important for language . |
27 | For example , it is still commonplace in cartoons to show cavemen and dinosaurs together , despite the fact that it has been known for many years that dinosaurs were extinct long before the evolution of ‘ cavemen ’ . |
28 | It has been known for many years that rich clusters contain a lot of gas and dark matter , but Ponman and Bertram 's result shows that these features apply more generally . |
29 | It has been known for many years that neurons , like other cells , can be maintained alive and well under such conditions for periods of many days or even weeks , provided they are kept warm , aerated and well fed with glucose and other essential molecules . |
30 | It has been known for many years that recycling used materials helps make great savings , but it was not until recently that it was realised how much good that it could do for the environment . |