| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] [prep] [be] | 7591 |
|
| 2 | it [modal v] [verb] [prep] | 4390 |
|
| 3 | it [modal v] [verb] [be] | 3868 |
|
| 4 | it [verb] [prep] [be] | 3793 |
|
| 5 | it [modal v] [prep] [be] | 790 |
|
