Example sentences of "not know for certain " in BNC.
Next page| No | Sentence |
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| 1 | I do not know for certain why I went up there to watch them doing it . |
| 2 | And though we do not know for certain , it does seem doubtful that the only sins against EPA science are those that have been revealed . |
| 3 | We do not know for certain what the total membership of any such set is , how many items belong to it , or the extent to which speakers vary in assigning items to the set . |
| 4 | However , at the beginning of the year we can not know for certain what the inflation rates will be ; we can only have expectations about what they will be . |
| 5 | 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 . |
| 6 | This table gives the numbers of each moneyer 's coins in each hoard ; an x denotes that these are not known for certain . |
| 7 | Exactly what happened is not known for certain , but the most likely scenario is that Crabb was intercepted by Russian frogmen and taken on board the Ordzhonikidze through a ‘ wet chamber ’ . |
| 8 | Even if the exact number of rounds in the game is not known for certain , in real life it is often possible to make a statistical guess as to how much longer the game is likely to last . |
| 9 | It is not known for certain at what moment of time afterwards she looked at her fingers , in order to gaze admiringly at the ring . |
| 10 | It is not known for certain if the male and female form a pair bond . |
| 11 | The exact date is not known for certain , but is either July 12th or 19th 1958 . |
| 12 | 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 . |