| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [adv] established that | 44 |
|
| 2 | it [be] [adv] established that | 44 |
|
| 3 | [pers pn] [be] [adv] established that | 44 |
|
| 4 | [pron] be [adv] established that | 44 |
|
| 5 | [pron] is [adv] established that | 36 |
|
| 6 | [pron] [is] [adv] established that | 36 |
|
| 7 | [pron] [be] well established that | 31 |
|
| 8 | [pron] was [adv] established that | 7 |
|
| 9 | [pron] [was/were] [adv] established that | 7 |
|
