| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which have [been] know [prep] | 5 |
|
| 2 | which [verb] [been] known [prep] | 5 |
|
| 3 | which [verb] [been] know [prep] | 5 |
|
| 4 | which [verb] been know [prep] | 5 |
|
