| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been known for some [noun] | 11 |
|
| 2 | has been known [prep] some time | 10 |
|
| 3 | has been known [prep] some [noun sg] | 10 |
|
| 4 | has been known [prep] some time | 10 |
|
