| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [was/were] [adv] that | 581 |
|
| 2 | it [was/were] established that | 25 |
|
| 3 | it [was/were] [adv] established | 22 |
|
| 4 | [was/were] [adv] established that | 8 |
|
