| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [adv] [verb] | 645 |
|
| 2 | it is [adv] [adv] [vb pp] | 509 |
|
| 3 | it is [adv] [adv] established | 14 |
|
| 4 | it be [adv] [adv] established | 14 |
|
| 5 | it [be] [adv] [adv] established | 14 |
|
| 6 | it is [adv] [adv] establish | 13 |
|
| 7 | it is [adv] [adv] established | 12 |
|
| 8 | it [is] [adv] [adv] established | 12 |
|
| 9 | [pron] is [adv] [adv] established | 12 |
|
| 10 | [pers pn] is [adv] [adv] established | 12 |
|
