| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [was/were] [verb] [prep] | 4918 |
|
| 2 | [pron] [was/were] know [prep] | 355 |
|
| 3 | which [be] know [prep] | 120 |
|
| 4 | which [was/were] know [prep] | 18 |
|
