Example sentences of "[noun sg] have long been [prep] " in BNC.

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1 This form of mimicking was described by the great biologist Henry Bates in the l9th century ; and such Batesian mimicry has long been of interest , particularly to students of evolution .
2 Fortunately the city has long been protected by the sorcerous Shifting Isles but its ability to defend itself in the event of a serious invasion has long been in doubt .
3 This is a much older problem and one which precedes the rise of environmentalism , because in addition to the environmental lobby the exclusive rights of the farmer have long been under threat from another source — the massed ranks of the urban population , intent on using the countryside as a source of recreation and determined to gain access to what they consider to be semi-public territory .
4 Like the poor themselves , the inner city has long been with us .
5 Reform of the rating system has long been on the political agenda .
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