| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [adv] [verb] | 10522 |
|
| 2 | it [be] [adv] [vb pp] | 7987 |
|
| 3 | [pron] [be] [adv] established | 135 |
|
| 4 | it [be] [adv] established | 93 |
|
| 5 | it [be] [adv] establish | 92 |
|
