| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it proved [adj] [to-vb] | 42 |
|
| 2 | it proved impossible [to-vb] | 18 |
|
| 3 | it proved impossible [to-vb] | 18 |
|
| 4 | it proved difficult [to-vb] | 14 |
|
| 5 | it proved difficult [to-vb] | 14 |
|
| 6 | it proved [adj] to get | 6 |
|
| 7 | it proved possible [to-vb] | 6 |
|
| 8 | it proved possible [to-vb] | 6 |
|
