Example sentences of "[vb mod] have have a [adj] effect " in BNC.

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1 One of them was two metres long and must have had a devastating effect on the plants as it browsed its way through the wet green bogs .
2 With the higher populations of Amerindians in the past , such groups must have had a major effect on the structure of the forest .
3 This says that ‘ greater freedom of communication by those professional advisers to the regulators might have had a significant effect on subsequent action , and hence on the later course of events ’ .
4 When Myra was regressed she was unable to come up with anything which might have had a distressing effect upon her before the incident with her cousin .
5 The resultant high temperatures and high humidities could have had a disastrous effect on both land and marine faunas .
6 Mr Lynch said that could have had a disastrous effect on the whales , which use their own inbuilt sonar system to navigate .
7 The Soviet debate of the 1920s was the first in history to face the problems of growth in a conscious manner , and they were not merely theoretical discussions since the results could have had a profound effect upon the actual outcome of events .
8 Clearly they failed to bring about disarmament , though they may have had a contributory effect on the decision to suspend tests in 1958 and later on the partial test ban treaty .
9 He also considered that the nature of the terrain in this area may have had a marked effect on forecast wind conditions .
10 The number of sympathisers able to support IRA operations on the Continent is smaller than in Northern Ireland , so the recruitment of a few informers may have had a disproportionate effect .
11 The Aquino government had resisted the return of the body on the grounds that it would have had a destabilizing effect on the country .
12 You might have thought these further disclosures would have had a powerful effect on me but , of course , I was inured to surprise where this man was concerned .
13 The removal of a large section of the landed and business sections of the community would have had a devastating effect on the province as a whole , and especially its economy .
14 These intra-uterine devices would have had a contraceptive effect and were relied on by some women for that purpose .
15 However , undoubtedly the night air would have had a sobering effect , especially as the walk was some 2¾ miles long .
16 So important , in fact , that such a cloud would have had a braking effect on the Sun 's spin over aeons of time .
17 Had this proposal been implemented , it would have had a disastrous effect on the morale and effectiveness of L Detachment .
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