Example sentences of "do [not/n't] know for certain " in BNC.
Next page| No | Sentence |
|---|---|
| 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 | 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 . |
| 5 | We do n't know for certain but it was probably to be given to you on your arrival . ’ |
| 6 | Already the ‘ What I want for Christmas ’ letters are pouring into Mr Brooke , although the goodies ( we do n't know for certain what they will amount to — that would spoil the surprise — but if we are lucky they may amount to £36 million per sector ) will not be dispensed for two years at least . |
| 7 | What Ah do n't know for certain is what happened immediately before that . |
| 8 | ‘ I should n't think so for one minute but I do n't know for certain . ’ |
| 9 | ‘ 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 . |