Example sentences of "have been known [prep] a " in BNC.
Next page| No | Sentence |
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| 1 | It has been known for a tough roadman-sprinter to control the race in these big hills , not to lose much time on the Ballon , then rejoin the leading group , dominate them on the long downhill run into Mulhouse and win the stage . |
| 2 | It has been known for a woman going into labour to suddenly perceive the connection between herself , her mother , mother 's mother , all the mothers of her line stretching back to the beginnings of time , and all the daughters that will follow after . |
| 3 | The toxic nature of some animals has been known for a long time and man has utilised their venoms and poisons for various purposes . |
| 4 | The effect of early experience on the mating preferences of birds and mammals has been known for a long time . |
| 5 | It has been known for a long time , and has led to the more modern practice called ‘ foliar feeding ’ , in which the purpose is not so much to correct deficiencies , but to encourage a boost in performance , yield and so on by spraying major element solutions on to the leaves in the same way . |
| 6 | It has been known for a long time that , partly due to their immense size , elephants can hear much lower sounds than we can . |
| 7 | Although serious research on the subject of mobbing did not begin until around the time of the Second World War , it has been known as a natural phenomenon for over 2,500 years . |
| 8 | The problem of toxics and blue-green algae had been known for a century in countries like Australia and the US where it occurred naturally . |
| 9 | It had been known for a long time that histamine was responsible for producing many allergies and the first antihistamine drug was produced in France in 1937 . |
| 10 | As I 've mentioned already in the context of metaphors of memory , the phenomenon of ‘ animal electricity ’ and its relation to neural activity had been known for a long time — at least since Galvani 's demonstration in Bologna in the 1790s that electrical pulses caused a frog 's legs to twitch . |
| 11 | That was how she had been known as a child when people had contrasted her with her sister Paula . |
| 12 | Other diuretics have been known for a long time , especially arsenical compounds of mercury . |
| 13 | These are called reaves and , while they have been known for a long time , their age , extent and probable purpose have only recently been recognised . |
| 14 | It 's been known for a very long time that from these cases you can isolate this organism C diphtheria bacterium which you saw in the practical classes and has this distinctive stayed property where er certain granules can be stayed up and also the arrangement of the cells is rather reminiscent of what called Chinese lettering . |