| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] be possible [prep] us | 6 |
|
| 2 | it [vb mod] be possible [prep] us | 6 |
|
| 3 | it be possible [prep] us [verb] | 7 |
|
| 4 | it be possible [prep] us [to-vb] | 7 |
|
