Example sentences of "must be [verb] to have [been] " in BNC.

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1 The first , by a Bank of England official , must be presumed to have been highly critical because it led to drastic reform of the island 's supervisory procedures .
2 All must be presumed to have been somewhat limited in potential , for the Bank of England 's sole right to joint-stock banking constrained the others into the " partnership " form .
3 This came into being when the very first change in the first cell took place , and that change , which was the first biochemical action , ultimately proved to have been , or must be acknowledged to have been , taken to initiate the process which would continue indefinitely to produce a living being with an ever-increasing capacity to enjoy life .
4 It was , therefore , open to argument that theoretically the income must be held to have been received by them .
5 In the absence of such proof service must be deemed to have been properly effected .
6 The defendant must be proved to have been indifferent to an obvious risk of injury to health , or actually to have foreseen the risk but to have determined nevertheless to run it . ’
7 In winter , when the level in the canal would tend to be some three inches higher , then some water did splash over the sides of the tanks , but never at any time was the water emptied from the tanks to enable hauling to proceed.9 ; On this basis alone the lift must be judged to have been a technical success .
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