| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb past] [be] [vb pp] | 1585 |
|
| 2 | [prep] it [be] [vb pp] | 565 |
|
| 3 | [prep] it [vb past] [be] | 82 |
|
| 4 | [prep] it [vb past] [vb pp] | 58 |
|
| 5 | [prep] [vb past] [be] [vb pp] | 17 |
|
