Example sentences of "[prep] these [noun] had be [v-ing] " in BNC.
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1 | It was not surprising , therefore , to find evidence that many of these teachers had been making carefully thought out and constructive efforts to develop more structured and appropriate approaches to this kind of assessment ; a process that has undoubtedly been accelerated by the introduction of the GCSE . |
2 | Second , almost three-quarters of these interviewees had been using heroin for two years or less by the start of the prevalence study period . |
3 | Somebody calculated that if the surface of the earth was covered with a layer of protein molecules a metre thick , right over the whole surface of the earth erm each one , each protein different from every other one , and let us suppose furthermore that each of these proteins had been changing once as second , uniquely , into some different kind ever since the formation of the earth , we would still have tried out only quite a small fraction of the available possible proteins a hundred amino acids long . |
4 | Many of these children had been attending for a long time , so they already knew many things , specially the important things like how to stand in line and what to do when your pen-nib broke . |
5 | Some of these men had been posing as caravan holiday makers for some weeks and now settled for a long , cold night on the clifftops . |
6 | Perhaps most alarmingly of all from a Russian point of view , the population of these republics had been increasing very much more rapidly than the all-union average and on some projections was expected to account for 25–30 per cent of the total Soviet population by the end of the century ( the USSR was already the world 's fifth largest Muslim state ) . |