| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be impossible [to-vb] [conj] [adj] | 13 |
|
| 2 | it [be] impossible [to-vb] [conj] [det] | 11 |
|
| 3 | it [is] impossible [to-vb] [conj] [adj] | 11 |
|
| 4 | it [be] impossible [to-vb] [subord] [adj] | 9 |
|
| 5 | it is impossible [to-vb] [conj] [adj] | 9 |
|
| 6 | it [be] impossible [to-vb] [conj] this | 7 |
|
| 7 | it [be] impossible [to-vb] whether [adj] | 7 |
|
| 8 | it [be] impossible [to-vb] [conj] this | 7 |
|
| 9 | it [be] impossible [to-vb] whether [adj] | 7 |
|
| 10 | it [be] impossible to say [conj] [adj] | 7 |
|
