| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] impossible for [pron] | 76 |
|
| 2 | it [vb mod] [be] for [pron] | 56 |
|
| 3 | it [vb mod] [be] impossible for | 41 |
|
| 4 | [vb mod] [be] impossible for [pron] | 17 |
|
