| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [conj] | 823 |
|
| 2 | is [adv] establish [conj] | 66 |
|
| 3 | it is [adv] establish | 63 |
|
| 4 | it is establish [conj] | 20 |
|
