| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [vb pp] to [be] | 690 |
|
| 2 | when it [be] [vb pp] to | 76 |
|
| 3 | when it [be] [vb pp] [be] | 6 |
|
| 4 | when it [be] to [be] | 5 |
|
