| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [adv] [verb] | 6487 |
|
| 2 | it [is] [adv] [vb pp] | 4657 |
|
| 3 | it [be] [adv] established | 91 |
|
| 4 | [pron] [is] [adv] established | 73 |
|
| 5 | it [is] [adv] established | 68 |
|
| 6 | it [is] [adv] establish | 68 |
|
