Example sentences of "been [verb] [prep] many years [conj] " in BNC.
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| 1 | These major companies are very stable , with an organisational structure which has been developed over many years and , like the Japanese Zaibatsu , they have a large-core business which is able to withstand changes in the market place . |
| 2 | 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 . |
| 3 | On being asked about the condition of the front door and windows , he admitted they had n't been painted for many years and that the door had more or less reached the end of its life , and showed it . |
| 4 | It has been occurring for many years and has been embodied in legislation such as the Housing Acts of 1935 and 1957 , although numbers of sales have fluctuated considerably according to the political complexions of the government of the day . |
| 5 | However , the system has now been operating for many years and much good work in the safety field has resulted . |
| 6 | 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 . |
| 7 | They have been used for many years as propellants in aerosols , in the production of some foam packaging and as coolants in refrigerators . |
| 8 | Social perceptions of what is or is not obscene or indecent may change but the legislation may remain to trap the unwary in a much more liberal climate ; and just because the legislation has not been used in many years that does not mean it will not be applied again . |
| 9 | Also in the field of biogeography world maps of plant formations had been utilized for many years and had indeed been adopted as the basis for some climatic classification by attempting to fit the classification to the plant distribution . |
| 10 | 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 ’ . |
| 11 | 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 . |
| 12 | 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 . |
| 13 | 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 . |
| 14 | Certain immigrant communities have been documented for many years as having higher mental hospital admission rates . |
| 15 | This is the practice that has been followed for many years and by and large it has worked . |
| 16 | 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 . |
| 17 | Relations with China , which had been strained for many years since the 1962 war between the two countries , gradually improved after Rajiv Gandhi 's visit to Beijing on Dec. 19-23 , 1988 , the first to China by an Indian Prime Minister for 34 years . |