Example sentences of "had be known for [adj] " in BNC.
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1 | Although the general distribution of earthquakes around the world had been known for many years , it was only with the establishment of a comprehensive network of seismographic stations to monitor underground nuclear weapons testing in the early 1960s that a detailed global picture emerged ( Fig. 2.10 ) . |
2 | The existence of the tape , had been known for two-and-a-half years , as copies were sent anonymously to newspapers . |
3 | It had been known for some time that relations between Stephenson and Villa were strained because of the player 's insistence on living in his home-town of Newcastle , and several clubs , keen to secure him , were watching the situation closely . |
4 | The squinch had been known for some time and was used in Persia , Turkestan , Armenia and Asia Minor . |
5 | The problems of the system under which the starter operates a lever had been known for some years , but the Jockey Club and the course executive failed to replace it , the report added . |