| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [vb pp] [prep] | 12840 |
|
| 2 | [be] [vb pp] [prep] be | 12586 |
|
| 3 | it [be] [prep] be | 1183 |
|
| 4 | it [vb pp] [prep] be | 26 |
|
