Example sentences of "has [be] the principal " in BNC.

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1 This has been the principal objective of President Doe of Liberia , himself of tribal origin .
2 Although Hubble 's work ( with subsequent numerical amendment ) has been the principal empirical basis of cosmology , this is not a book about cosmology but about astronomical observation beyond the Galaxy .
3 The LOB corpus has been the principal corpus used throughout the current project .
4 SCP does not have a guarantee and , traditionally , " name recognition " has been the principal way of ascertaining the credit risk associated with SCP .
5 A partner in the Washington DC and Century City ( CA ) offices , he has been the principal corporate and litigation lawyer for Princess Cruises for the past five years .
6 Until now France has been the principal export outlet .
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