| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adj] [prep] us [verb] | 232 |
|
| 2 | be impossible [prep] [pron] [verb] | 71 |
|
| 3 | be impossible [prep] [pers pn] [verb] | 61 |
|
| 4 | [be] impossible [prep] us [verb] | 12 |
|
| 5 | be impossible [prep] we [verb] | 12 |
|
