| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [verb] that the | 341 |
|
| 2 | it is [adv] [vb pp] that the | 331 |
|
| 3 | it is [adv] established that [art] | 13 |
|
| 4 | it [be] [adv] established that the | 13 |
|
| 5 | it be [adv] established that the | 13 |
|
| 6 | it is [adv] established that [art] | 13 |
|
| 7 | it is [adv] established [conj] the | 9 |
|
| 8 | it is [adv] established that the | 8 |
|
| 9 | it [is] [adv] established that the | 8 |
|
| 10 | it is [adv] established that the | 8 |
|
| 11 | it is [adv] establish that the | 8 |
|
| 12 | [pron] is [adv] established that the | 8 |
|
