| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be impossible [to-vb] | 1046 |
|
| 2 | it be [to-vb] [det] | 117 |
|
| 3 | be impossible [to-vb] [det] | 112 |
|
| 4 | it impossible [to-vb] [det] | 20 |
|
