| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] [prep] | 1344 |
|
| 2 | [modal v] [prep] [vb pp] | 1062 |
|
| 3 | it [prep] [vb pp] | 182 |
|
| 4 | it [modal v] [vb pp] | 14 |
|
