| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [verb] | 18437 |
|
| 2 | it is [vb pp] | 14689 |
|
| 3 | it [be] envisaged | 97 |
|
| 4 | it be envisaged | 97 |
|
| 5 | [pron] is envisaged | 82 |
|
| 6 | it [is] envisaged | 71 |
|
| 7 | it is envisage | 71 |
|
