| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [adj] for us | 163 |
|
| 2 | it be impossible for [pron] | 76 |
|
| 3 | it be impossible for [pers pn] | 60 |
|
| 4 | it be impossible for we | 11 |
|
| 5 | it [be] impossible for us | 11 |
|
| 6 | it be impossible [prep] us | 11 |
|
| 7 | it be impossible [prep] us | 11 |
|
| 8 | it be impossible for us | 11 |
|
| 9 | [pron] be impossible for us | 11 |
|
