| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] it [vb pp] | 1822 |
|
| 2 | it [be] [vb pp] | 509 |
|
| 3 | [verb] it [be] | 272 |
|
| 4 | [verb] [be] [vb pp] | 191 |
|
