| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been known [prep] [det] | 18 |
|
| 2 | has been known for [adj] | 16 |
|
| 3 | has been known [prep] some | 11 |
|
| 4 | has been known [prep] some | 11 |
|
| 5 | has been known [prep] many | 6 |
|
| 6 | has been known [prep] many | 6 |
|
