Example sentences of "been [verb] for several [noun] [prep] " in BNC.

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1 ‘ At the alleged places of detention , ’ Mr Ahtisaari said , ‘ the facilities were found to have been stripped of all valuable material and not to have been inhabited for several weeks at least . ’
2 • In rodents , rhythms continue to develop in animals that have been reared for several generations in constant conditions .
3 The US and North Korean governments had been communicating for several years at a low level through the US embassy in Beijing .
4 Any tank that has been running for several months in a typical down-flow system will eventually become clogged and packed down .
5 She had been talking for several minutes about a party she had been to the previous evening .
6 In the end , the quacks and medicine men were left with that strange , disembodied feeling you get when you 've been talking for several minutes to someone who is n't there .
7 • In rare instances , new-born babies have been studied for several months in a constant environment in a hospital ward .
8 Road pricing , which involves charging drivers directly for their use of the road network , has been advocated for several years as a means of reducing congestion and environmental impact .
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