Example sentences of "[vb base] been known for [adj] years " in BNC.
Next page| No | 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 . |