Example sentences of "must therefore have been " in BNC.

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1 These sea-level fluctuations must therefore have been produced by changes in the cubic capacity of the ocean basins .
2 Large-magnitude extensional deformation must therefore have been accommodated along a low-angle detachment ( normal ) fault during both ductile and brittle phases of deformation .
3 These cases must therefore have been regarded as distinguishable , presumably on the ground that Slater 's case did not involve any refusal to perform a service unless an unlawful payment was made .
4 The authority , if it existed , must therefore have been actual authority .
5 The authority , if it existed , must therefore have been actual authority .
6 There must therefore have been a certain piquancy for him in now extending hospitality to the fallen monarch .
7 Sedimentation must therefore have been fast enough to bury the tree and solidify before the tree had time to rot .
8 In that same summer , however , occurred the incident involving the Hurufis , to be described shortly , in which Fahreddin Acemi is clearly shown to be acting as Mufti ; and he must therefore have been Mufti at the time of Molla Arab 's putative association with him .
9 She had apparently been travelling to Godstowe and must therefore have been expected .
10 Most of the problems must therefore have been solved in the past and the experience thus gathered can be reapplied with small variations .
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