Example sentences of "it has been [vb pp] [that] for " in BNC.

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1 It has been seen that for an offence to be committed under section 14 two things need to be present at the same time .
2 Allowing for the three major leakages of imports , savings and taxation , it has been calculated that for every £l paid to an employee in the UK , a further 80 pence of expenditure is generated throughout the economy .
3 It has been estimated that for every hour of brisk walking , you can add one extra hour to the length of your life .
4 By plotting the areal distribution of marine strata and making reasonable inferences from facies distributions about the location of former shorelines , it has been established that for long periods of time in the Phanerozoic , especially in the early Palaeozoic and late Cretaceous , the continents have been inundated by up to two thirds of the present area by epicontinental seas .
5 It has been shown that for a chain moving in the melt , over time-scales that greatly exceed the lifetime of the tube τ , a reptation self-diffusion coefficient D rept , can be measured which is inversely proportional to n 2 , i.e. the diffusion law is
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