| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [verb] [conj] a | 78 |
|
| 2 | it is [adv] [vb pp] [conj] a | 75 |
|
| 3 | it is [adv] established [conj] [art] | 14 |
|
| 4 | [pron] is [adv] established [conj] a | 5 |
|
| 5 | it [is] [adv] established [conj] a | 5 |
|
| 6 | it [be] [adv] established [conj] a | 5 |
|
| 7 | it be [adv] established [conj] a | 5 |
|
| 8 | it is [adv] establish [conj] a | 5 |
|
