| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb mod] to [be] [verb] | 617 |
|
| 2 | it [vb mod] [prep] [be] [verb] | 149 |
|
| 3 | it [vb mod] [prep] [be] [verb] | 149 |
|
| 4 | it [vb mod] to [be] [verb] | 147 |
|
| 5 | it [modal v] to [be] [verb] | 147 |
|
