Example sentences of "is difficult [verb] [adj] [noun pl] " in BNC.

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1 Thirdly , as mentioned above , because we know little about historical relationships between sign languages it is difficult to disentangle historical influences and similarities between signs arising from other causes .
2 In so far as it is difficult to state educational objectives in terms of measurable outcomes — and we suggest that in the case of the stated objectives of the ESSE/L Project this is particularly true — a positivist approach to appraising the project according to some simple notion of " value for money " was simply impossible .
3 But , given the interpersonal nature of the Ameslan work , it is difficult to devise accurate tests to detect inadvertent undue influence .
4 If it is difficult to define inner cities in terms of some geometric configuration of urban morphology , it is even less easy to identify the inner city within any national political economy .
5 Given his detailed control of programmes of study and attainment targets it is difficult to envisage credible examinations that would not reflect these .
6 While it is difficult to give definitive answers to questions about control , the prevailing pattern does seem to be loose and informal : there seem to be few cases of actual censorship .
7 It is difficult to give precise guidelines for contingency fee structures as these will vary significantly between assignments but in addition to the points raised in 0502.53 above the following points should be considered :
8 It is difficult to give precise guidelines but it is now our practice to recommend that oral iron be given until the haemoglobion concentrations and red cell counts are normal , and that these are remeasured at about three monthly intervals for a year and further iron given as necessary .
9 Although it is difficult to reach firm conclusions from the small number of patients who underwent balloon counterpulsation , those few who have survived in the long term underwent such a procedure while their renal function was still normal or nearly normal and their renal state remained stable until transplantation .
10 It is difficult to evaluate different systems because they are traditionally idiosyncratic depending on their particular area of specialisation .
11 However , it is difficult to generate sufficient supplies !
12 Similarly when children have been ill , parental expectations of their behaviour changes , and sometimes it is difficult to re-establish previous patterns of sleep and feeding when a parent is unsure whether the child is fully recovered .
13 In practice most research and development is carried out in high-tax jurisdictions because it is difficult to attract skilled employees to tax haven locations , and in order to take advantage of local tax deductions .
14 Trenches can be dug by machine , although it is difficult to recognize archaeological features as a machine is uncovering , and perhaps cutting through them .
15 From Canada comes the comment that ‘ because musical demands are now far less challenging , it is difficult to recruit serious musicians ’ .
16 However , the limited extent of this research , combined with the different questions explored by different methods , leave a substantial number of issues on which it is difficult to make definitive statements .
17 Naturally , it is difficult to make direct comparisons with the situation in the United Kingdom because psychosocial problems is a broad category and children who meet this criterion are sheltered by different services , such as education , health , and social services .
18 But it is difficult to get numerical estimates for ‘ relative income ’ , a concept much attacked by critics .
19 It is difficult to obtain accurate figures from the wilder , more snake-ridden parts of the world , such as Africa , Asia and South America , but an attempt at a global survey carried out in the 1950s gave a total world figure of thirty thousand deaths annually from all forms of snakebite .
20 It is difficult to obtain precise figures of private sector investment in the inner cities , but there may be reasons to doubt industry 's willingness to commit billions of pounds to inner city developments .
21 Lone-parent families are not a homogeneous group and it is difficult to obtain reliable estimates of the numbers of families and children involved .
22 It is difficult to handle overlapping activities .
23 It is difficult to handle overlapping activities .
24 Structural reform is necessary , but it is difficult to establish global policies .
25 It is difficult to establish precise rules .
26 It is difficult to exclude vulgar fractions as correct answers to such questions by rewording them , and it may be worth considering modifying the criterion to specify " between two decimal numbers in size " .
27 If it is difficult to forecast future savings for the school , will there be good reasons for appointing staff on a one-year or shorter-term contract and , if so , what effect could this have on school morale , planning , extra-curricular activities , or indeed on the teacher concerned ?
28 It is difficult to calculate comparative figures for how earlier people worked , but , in a recent experiment in Denmark , three men cleared 500 square metres ( 600 square yards ) of birch forest in four hours and more than 100 trees were felled .
29 To say the least , however , it is difficult to grow regular crops of fine juicy pears in local conditions .
30 Hilary Murphy explains that it is difficult to find new questions to reach the same answers .
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