Example sentences of "be not always possible [to-vb] " in BNC.

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1 It is not always possible to say precisely which kind of eyes these are pretending to be , but the chances are that in most cases they are mimicking the forward-facing eyes of birds of prey .
2 First , it is not always possible to test rational expectations per se , but only jointly with other , supplementary assumptions .
3 Funding being limited , it is not always possible to purchase foreign maps with Scottish associations or simply to fill gaps in the collection .
4 Although it is not always possible to record all this information in the modelling process , it is necessary to be at least aware of these factors .
5 As the brochure on the procedure in these cases explains it is not always possible to conclude a claim as quickly as you or I would like .
6 For this reason , it is not always possible to carry out the preferred size or type of investigation until certain data or resources become available .
7 It is not always possible to give adequate thought to the future when caught up in the day-to-day running of an operation , but if you live the business , as Sir Hector unashamedly does , there are always less hectic times to mull over major issues .
8 There are enormous pressures on the time of the Administration and Commons and it is not always possible to give to Bills the leisured consideration desirable for good drafting and effective debate .
9 It is not always possible to answer post by return , or to return telephone calls within the next few minutes .
10 But it is not always possible to state a priori if labour is productive or unproductive , since it is the particular circumstances which determine this .
11 However , it is not always possible to arrange visits to particular departments on particular days .
12 For processors which have more complex architectures it is not always possible to have all features present on the screen simultaneously — unless you have dynamic windowing .
13 Often as not fry have to be removed from their parents for any number of reasons and if a bare tank is used in which to grow them on , it is not always possible to have a suitable filter on hand to use in an emergency .
14 The latter requirement holds no difficulty , rather it is the former requirement which gives rise to difficulties because on occasions odour problems are complex , the source of the odour being difficult to identify , and it is not always possible to know whether or not a particular method of abatement will effect a cure in any given case .
15 It is not always possible to deliver a module just at the time a trainee needs it for the purposes of SVQ assessment .
16 It is not always possible to place soft systems studies into strict categories , such as those concerned with organisational analysis , defining user requirements and so on .
17 This means that the individual items in each notebook can rarely be dated with any precision and that notes in one notebook may , and often do , presuppose plans in another ; even within single notebooks it is not always possible to determine whether items in a sequence belong together .
18 It is not always possible to determine at time of intimation whether a carpet will clean satisfactorily or whether it requires to be replaced .
19 I have a routine to which it is not always possible to keep : writing in the morning for about three hours , then the rest of the day for other business .
20 It is not always possible to keep to that principle , or to the above one about using words of the same classes .
21 However , the TNC-dominated export industries tend to employ more women than men.The reasons for this have stimulated a great deal of argument and it is not always possible to generalize cross-culturally .
22 Although it is not always possible to match jobs perfectly with aptitude , use should be made of the strength and expertise of senior staff in the jobs to which they are best suited ; their enthusiasm will spread to assistants and a higher level of general motivation will result .
23 The answer , of course , is to drill a hole , but it is not always possible to find a drill to suit the nails you are using .
24 In science it is not always possible to find one theory which accounts for and describes every aspect of an event .
25 It is not always possible to find a suitable theta-solvent for a polymer and methods have been developed which allow unperturbed dimensions to be estimated in non-ideal ( good ) solvents .
26 It is not always possible to measure the gamma dose rate at exactly the spot where a sample for dating is found , since the excavation of the sample will have removed much of the material surrounding it .
27 Unfortunately , the survival of tax records from the middle years of the century ( and more especially after 1450 ) is more patchy than from the period immediately before , so it is not always possible to trace the disappearance of villages at precisely the time when a substantial number of the desertions seems to have occurred .
28 For example , it is not always possible to get moss to thrive , in which case dwarf cover plants can be substituted .
29 Well-paid summer jobs are not always available and it is not always possible to clear hefty overdraft payments before the start of the year .
30 Thereafter they practised together , and it is not always possible to distinguish the work of the father from that of the son .
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