| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb past] be [verb] | 1746 |
|
| 2 | [prep] it be [verb] | 762 |
|
| 3 | [prep] it [vb past] [verb] | 114 |
|
| 4 | [prep] it [vb past] be | 82 |
|
| 5 | [prep] [vb past] be [verb] | 19 |
|
