Example sentences of "[vb base] [been] known for [det] [noun pl] " in BNC.
Next pageNo | Sentence |
---|---|
1 | Although they have been known for many years their evolutionary position is still hotly debated . |
2 | Variants of this reaction have been known for many years . |
3 | Variants of this reaction have been known for many years . |
4 | FLARES on the Sun have been known for many years to produce powerful bursts of X-rays , gamma-rays and charged particles . |
5 | But we know very little about the animals which bore these scales and although a few articulated remains have been known for several years , they show very little anatomical detail and it is not easy to identify immediate relatives . |
6 | Difficulties with the present ‘ grey gate ’ system , in which the starter pulls a lever to raise a 65 yard-long elastic tape , have been known for some years . |
7 | Difficulties with the present ‘ grey gate ’ system , in which the starter pulls a lever to raise a 65 yard-long elastic tape , have been known for some years . |