Example sentences of "have been [verb] over many year " in BNC.

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1 Inventories have been refined over many years to meet your needs on flotilla , and include little touches like sets of snorkels and flippers — and a pack of foodstuffs and cleaning materials to start you off .
2 While case management has empirical referents which have been developed over many years ( largely in the USA ) care management has , until recently , had none .
3 In order to understand the nature of the changes that are taking place following the Education Reform Act 1988 , and in particular the changing role of the local education authority , it is important to reflect briefly on the nature of relationships which have been established over many years .
4 Links with the University of Moscow and with the Universities of Zagreb , Belgrade and Ljubljana have been established over many years .
5 Numerous papers have been published over many years identifying the need for an integrated approach to health and social care at the practice level .
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