| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adj] [verb] that | 1775 |
|
| 2 | it is [adj] establish [conj] | 15 |
|
| 3 | it [be] [adj] establish that | 14 |
|
| 4 | it be [adj] establish that | 14 |
|
| 5 | it [is] [adj] establish that | 10 |
|
| 6 | it is [adj] establish that | 10 |
|
| 7 | [pron] is [adj] establish that | 10 |
|
