Example sentences of "may have [vb pp] to a [noun] " in BNC.

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1 The broad philosophy underlying the system is not at fault , although the somewhat inevitable complexity may have led to a failure to grasp implications of changes in time to prevent the odder features of instability .
2 These factors may have led to a decrease in the exposure of the colonic mucosa to carcinogens and may have protected the colon and negated any effect of the modest increases in the proliferative zone in the distal colon .
3 Two periods , 1750 – 70 and the 1780s , saw especially sharp declines , although the generally high level of economic activity in the latter may have compensated to a degree with fuller employment .
4 Much may have happened to a flue , both during its closure , and when it was previously in use .
5 THE Soviet Union 's quarrelling politicians may have come to a truce , perhaps something more .
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