| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [verb] that | 8866 |
|
| 2 | it [be] [vb pp] that | 8672 |
|
| 3 | it [be] established [conj] | 47 |
|
| 4 | [pron] [be] established that | 44 |
|
| 5 | it [be] establish that | 43 |
|
