| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] for [pron] [to-vb] | 82 |
|
| 2 | it [be] impossible for [pron] | 76 |
|
| 3 | [be] impossible for [pron] [to-vb] | 70 |
|
| 4 | it impossible for [pron] [to-vb] | 51 |
|
