Example sentences of "[not/n't] [verb] for certain what " in BNC.
Next page| No | Sentence |
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| 1 | 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 . |
| 2 | 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 . |
| 3 | Answering this kind of question will inevitably involve you in a certain amount of guesswork , because you ca n't know for certain what has been going on , but some assumptions are more likely than others . |
| 4 | 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 . |
| 5 | Something in the atmosphere of the room seemed to have changed in the course of the last few moments , and Liston could n't say for certain what it was . |
| 6 | I could n't say for certain what our smallest listed building is , but I suspect that some old wall-mounted pillar boxes will be strong candidates ! |