| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] [verb] [prep] | 78600 |
|
| 2 | it [modal v] [be] [verb] | 12232 |
|
| 3 | it [modal v] [verb] [prep] | 4391 |
|
| 4 | it [modal v] [be] [prep] | 2061 |
|
| 5 | it [be] [verb] [prep] | 144 |
|
