Example sentences of "one [verb] for certain " in BNC.
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| 1 | The answer is that after mating they produce a tiny mobile larvae totally different to the adult this might drift for miles on ocean current before settling into the fixed adult form Down Norwick power station in North Wales , generates the electricity by pump storage , in off peak hours thousands of gallons of water are pumped from a lower lake to an upper lake , when the demand for electricity is high bowels are opened and water falls back through turbine to the lower lake again , this generates the power To ensure that the lower lake would never flood the was diverted through mile long tunnel in the mountain side , no one knew for certain how the salmon , the trout and even rarer that used to migrate up the old river would cope with the tunnels , pitch darkness and slow flowing water . |
| 2 | All that was important of human knowledge had been handed down — no one knew for certain whence old science had come — and only in interpretation was there ever anything which was novel or innovative . |
| 3 | When my father arrived in Abyssinia in mid-December 1909 to take up his post as British Minister in charge of the Legation , the Emperor Menelik , the greatest ruler the country had known for centuries , was reported to be still alive ; but no one knew for certain , and all men asked what would happen when he died . |
| 4 | No one knew for certain what volume of water was pent up , but the old mine must have been full to the random of the 17th Century Cobblers Level . |
| 5 | No one knows for certain how much the misuse of alcohol costs society , but it 's a great deal . |
| 6 | ‘ No one knows for certain , although plenty of theories have been put forward . |
| 7 | Half a million different laws ( although no one knows for certain how many ) have insured that the legal system is rigged , keeping the cost of formality far beyond the reach of the average small Peruvain entrepreneur . |