| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [verb] [that] [art] | 414 |
|
| 2 | it is [adv] [vb pp] [that] [art] | 404 |
|
| 3 | it be [adv] established [that] [art] | 18 |
|
| 4 | it [be] [adv] established [that] [art] | 18 |
|
| 5 | it is [adv] established [conj] [art] | 14 |
|
| 6 | it is [adv] established [that] [art] | 13 |
|
| 7 | it [is] [adv] established [that] [art] | 13 |
|
| 8 | [pron] is [adv] established [that] [art] | 13 |
|
| 9 | it is [adv] establish [that] [art] | 13 |
|
