Example sentences of "it have been [vb pp] [det] " in BNC.
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| 31 | It has been estimated that about 15.7 per cent . |
| 32 | In fact it is probable that it has been repopulated several times . |
| 33 | It has been mentioned several times that tonic syllables have a high degree of prominence ; prominence is , of course , a property of stressed syllables , and a tonic syllable not only carries a tone ( which is something related to intonation ) but also a type of stress that will be called tonic stress . |
| 34 | Notwithstanding problems of this kind there has been undoubted improvement in VDU design and it has been speculated that trade union pressure for high design standards has been a major stimulus to companies marketing their products on the basis of user acceptability . " |
| 35 | In this context , it has been reported that over-expression of EGF in gastric mucosa is , by itself , unlikely to cause transformation without the simultaneous overproduction of the EGF receptor . |
| 36 | It has been reported that serum cholesterol values are similar in samples from fasting and non-fasting subjects . |
| 37 | It has been reported that blood group O and non-secretor status are associated with duodenal ulcer , however , the magnitude of the association was very weak . |
| 38 | SIR , — It has been reported that HIV-1 antibodies can be detected , with a high degree of sensitivity and specificity , in saliva and in oral mucosal transudate ( OMT ) from HIV-1-infected patients . |
| 39 | In the same way , it has been reported that transformation of S.pombe cells with a linear plasmid bearing Tetrahymena telomeric sequences gives rise to only a very small fraction of transformants containing a plasmid with the correct structure ( 7 ) . |
| 40 | In the litter tray they do the same thing , but if it has been used several times without being properly cleaned out this becomes impossible and the cat will then prefer to defecate elsewhere , even if it has to go through the motions of covering its dung with imaginary earth after it has deposited it on a wooden floor or a carpet . |
| 41 | It has been reprinted several times , beginning in 1910 . |
| 42 | The other reason for looking for an approximate solution is that once it has been found such an approximate solution can then be worked upon and modified to give a much better solution . |
| 43 | Also in Germany it has been claimed that cartelisation ( reflecting the later date , and a particular mode , of industrialisation ) gave rise to strongly structured employers ' organisations which attained an authority over their members that was never to exist in the smaller diversified and undercapitalised industrial enterprises in France ( Maurice and Sellier , 1979 ) . |
| 44 | ‘ Now if the defendants were bound to charge the plaintiff for the carriage of his goods a less sum , and they refused to carry them except upon payment of a greater sum , as he was compelled to pay the amount demanded , and could not otherwise have his goods carried , the case falls within the principle of several decided cases , in which it has been held that money which a party has been wrongfully compelled to pay under circumstances in which he was unable to resist the imposition , may be recovered back in an action for money had and received . |
| 45 | In the past it has been held that Article 86 may be infringed where a company holding a dominant position within the EC strengthens that position , by acquiring control of another company or business in the same market , to such an extent that it practically eliminates effective competition in that market . |
| 46 | In the past it has been alleged that consent was often less than genuine , the person believing that he had no option but to allow the police the right to enter the premises and search . |
| 47 | Once it has been established that radon concentrations are above the action level , remedial action must be taken ( Table 3 ) . |
| 48 | It has been established that |
| 49 | It has been established that glutamine is an important food for many rapidly dividing cells , and the increased rate of glutamine utilisation in UC probably relates to the increased rate of proliferation seen in this condition . |
| 50 | More generally under association bargaining it has been shown that |
| 51 | Using identical conditions , it has been shown that injection of a single mitochondrion ( containing 10mtDNA molecules ) into cells results in the complete repopulation of the recipient cells with mtDNA and permits their subsequent proliferation in the absence of pyrimidines . |
| 52 | For Britain it has been shown that Cabinet ministers , senior civil servants , members of key advisory bodies and the heads of prestigious organizations tend to be drawn from a relatively narrow social class group , characterized by education at public schools and Oxbridge and by having had parents in a similarly narrow range of upper-middle-class occupations . |
| 53 | For example , it has been shown that failure to clean fluorescent lighting over a five-year added 20 per cent to the running costs of the apparatus . |
| 54 | It has been shown that somatostatin ha sno effect on haemostasis , and particularly on platelet aggregation , with clinical doses of 250 and 500 µg/h in non-diabetic subjects ; only with a higher dose ( 750 µg/h ) were circulating platelet aggregates detected . |
| 55 | There have been a lot of studies done with regard to morale and job satisfaction and it has been shown that , that if people are well trained , they feel a lot more loyalty towards the company cos they feel that somebody 's actually taking responsibility for their training and development . |
| 56 | There was an area of bruising below the right eye but , although it was recent , Wycliffe felt sure that it had been inflicted some time before death — probably the day before . |
| 57 | It had been painted that way to make it stand out — the opposite of camouflage . |
| 58 | A British team managed to reach one that , although it had been hooked several hours before , was still just living when its captor got it ashore . |
| 59 | It had been converted some years before Miss Dalgliesh had bought it by the addition of a flint-faced , two-storey building with a large sitting room , smaller study and a kitchen on the ground floor and three bedrooms , two of them with their own bathrooms , on the floor above . |
| 60 | By its appearance it had been cooked several days ago . |