| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] found it impossible | 15 |
|
| 2 | have found it impossible | 15 |
|
| 3 | [vb base] found it impossible | 7 |
|
| 4 | have found it impossible | 7 |
|
| 5 | found it impossible [verb] | 17 |
|
| 6 | found it impossible [to-vb] | 17 |
|
