Example sentences of "it is necessary [verb] three [noun] " in BNC.

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1 Clearly , in order to obtain this kind of information it is necessary to conduct three assessments under similar conditions so that they are directly comparable and spaced at equal time intervals .
2 But even if we restrict ourselves to the ideational or cognitive function of language ( see p 31ff ) it is necessary to distinguish three levels of organization in language .
3 At this stage it is necessary to make three points about the scope of the Act .
4 In testing for Super Class 1 , Class 1 and Class 2 transactions it is necessary to make three comparisons between the listed company and the business it is disposing of or acquiring .
5 Earl ( 1989 ) argues that it is necessary to identify three issues in the business plan to help ensure the success of IT :
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