| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] impossible for them [to-vb] | 10 |
|
| 2 | [pers pn] [be] impossible for them [to-vb] | 10 |
|
| 3 | [pers pn] be impossible for them [to-vb] | 10 |
|
| 4 | [pers pn] [is] impossible for them [to-vb] | 7 |
|
| 5 | [pers pn] is impossible for them [to-vb] | 5 |
|
