Example sentences of "[not/n't] [verb] for certain [subord] " in BNC.
Next page| No | Sentence |
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| 1 | A senior officer said : ‘ We have not exhausted all our enquiries yet and we do not know for certain if those ransom calls were the work of cranks . |
| 2 | Although it is not known for certain whether Yazid was present at Karbala , he is cast by the Shiites as the author of the incident , and the name is to this day a favourite Shiite epithet for a Sunni adversary — it was used in this sense during the 1980s war by the Tehran leadership when referring to that in Baghdad . |
| 3 | It is not known for certain if the male and female form a pair bond . |
| 4 | ‘ The common denominators in all these factors , as a mathematician would say , are Dacourt and Millet but , first , we do n't know for certain if the wine sent to the Abbe Gerard was in fact the same he was drinking the night he died . |
| 5 | Until now she had n't taken much notice of him , so she could n't say for certain whether he was handsome or not . |