| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [prep] us [verb] | 16 |
|
| 2 | be possible [prep] us [verb] | 13 |
|
| 3 | it possible [prep] us [verb] | 11 |
|
| 4 | it be possible [prep] us | 8 |
|
| 5 | it be possible [prep] [verb] | 6 |
|
