| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] impossible [to-vb] [conj] this | 7 |
|
| 2 | it [be] impossible [verb] [subord] this | 7 |
|
| 3 | it [be] impossible [verb] [conj] this | 7 |
|
| 4 | it be impossible [verb] [conj] this | 7 |
|
| 5 | it [is] impossible [verb] [conj] this | 6 |
|
| 6 | it [be] impossible [verb] whether this | 5 |
|
| 7 | it [be] impossible [verb] whether this | 5 |
|
| 8 | it is impossible [verb] [conj] this | 5 |
|
