| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] impossible [prep] be [adj] | 24 |
|
| 2 | it [is] impossible [prep] be [adj] | 24 |
|
| 3 | it [is] impossible to be [adj] | 24 |
|
| 4 | it [is] impossible to be [adj] | 24 |
|
| 5 | it [is] impossible [prep] be [adj] | 23 |
|
| 6 | it is impossible [prep] be [adj] | 19 |
|
| 7 | it [is] impossible [prep] be certain | 7 |
|
| 8 | it [is] impossible [prep] be sure | 7 |
|
| 9 | it [is] impossible [prep] be certain | 7 |
|
| 10 | it [is] impossible [prep] be sure | 7 |
|
| 11 | it 's impossible [prep] be [adj] | 5 |
|
