| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [verb] | 51076 |
|
| 2 | it be [vb pp] | 37805 |
|
| 3 | [pron] be established | 266 |
|
| 4 | it be establish | 140 |
|
| 5 | it [be] established | 133 |
|
