Example sentences of "[noun] have [vb pp] for [det] years " in BNC.

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1 Conceptually , what is offered is little more than an automated ‘ sieve mapping ’ that land-use planners have used for many years , but the whole procedure is speeded up by many orders of magnitude using GIS software .
2 Research workers have tried for many years to culture mycobacteria from tissue affected by Crohn 's disease , although generally without success .
3 Further study is necessarily being completed ; but the evidence of linkage between the simultaneous appearance of climatic phenomena in Kansas , Chad , Bihar and in the south — eastern Pacific Ocean suggests what all geographers have known for many years — that the globe works as one complete system , one vast interactive machine , and that the divisions man has forced upon it are no more than crudely artificial devices for our own intellectual convenience .
4 European astronomers have collaborated for many years through the European Space Agency , which provides some space-science programme .
5 Mr Raynor asks if this column can help in identifying the origin of this poster which his family have owned for many years — doubtless readers can help !
6 ‘ The constructors and team-managers have enjoyed for some years now such unrealistic power and influence , have commanded so much attention , they have begun to think of themselves and their cars as the stars .
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