| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] been known [prep] [det] | 14 |
|
| 2 | it [verb] been known for [adj] | 14 |
|
| 3 | it have been known [prep] [adj] | 14 |
|
| 4 | it [vb -s] been known [prep] [adj] | 13 |
|
| 5 | it has been known [prep] [adj] | 12 |
|
| 6 | it [verb] been known [prep] some | 9 |
|
| 7 | it [verb] been known [prep] some | 9 |
|
| 8 | it [verb] been known [prep] many | 5 |
|
| 9 | it [verb] been known [prep] many | 5 |
|
