Example sentences of "[be] [adv] [adj] to be sure " in BNC.
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| 1 | On the other hand , it can be extremely difficult to be sure who is going to win until very near the end of the game . |
| 2 | Apart from the question of payment , it will also be especially important to be sure of the precise nature of your commitment in terms of hours to be worked on a weekly or monthly basis . |
| 3 | It can be very difficult to be sure of why a hoard of objects was buried in the ground . |
| 4 | It 's so hard to be sure . |
| 5 | Clearly it is difficult to be dogmatic about faunas of this age , when such short time-spans are involved , and it is also difficult to be sure that particular species are more time-controlled than facies-controlled . |
| 6 | It spans a period of over 600 years , i.e. from about 1900 BC to about 1250 BC , though it is notoriously difficult to be sure of dates at this early stage of Israel 's history . |
| 7 | As a result , it is often difficult to be sure that breeding males fertilize all the females in the groups that they guard : for example , even if territorial male red-winged blackbirds ( Agelaius phoeniceus ) are vasectomized , their females sometimes lay fertile eggs ( Bray , Kennelly & Guarino , 1975 ) . |
| 8 | He sounds a further note of caution : ‘ It is sometimes difficult to be sure you are sending your cars to be serviced at a garage that is properly equipped to deal with diesel vehicles and has appropriately trained staff . ’ |
| 9 | Though it is never possible to be sure one is doing the right thing , he wrote . |
| 10 | It is too early to be sure whether this new technology will establish itself in our schools but , if you are investigating the potential of video in an institution , you should certainly know what videodisc is capable of . |
| 11 | ‘ Given the levels of consumer debt and the continuing rise in unemployment , it is too early to be sure we are seeing a sustainable recovery in consumer spending . |
| 12 | High street sales last month showed their strongest year-on-year growth since May , but Nigel Whittaker , chairman of the the Confederation of British Industry 's distributive trades panel , who carried out the survey , said : ‘ Given the levels of consumer debt and the continuing rise in unemployment , it is too early to be sure we are seeing a sustainable recovery in consumer spending . ’ |
| 13 | It is very important to be sure that the wreckage of the whole aircraft is present in case the accident was caused by a piece breaking off in flight and falling possibly a mile or two away . |
| 14 | Although the Yerkes-Dodson law provides an additional prediction which can be tested , it suffers firstly from the problem that it is often impossible to define task difficulty a priori and secondly that even when this is done successfully it is very hard to be sure that task difficulty does not itself affect arousal . |
| 15 | Working on so small a piece of basic material , it was remarkably difficult to be sure we had correctly identified the genes . |
| 16 | In this imaginary development within Newtonian astronomy , it was never possible to be sure that a major success was not just around the corner . |