| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been known for some [noun] | 20 |
|
| 2 | have been known for some [noun sg] | 16 |
|
| 3 | have been known for some time | 16 |
|
| 4 | have been known for some time | 16 |
|
| 5 | has been known for some [noun] | 11 |
|
| 6 | have been known for some [noun] | 5 |
|
