| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not possible [to-vb] [art] | 179 |
|
| 2 | [was/were] possible [to-vb] [art] | 138 |
|
| 3 | [was/were] not possible [to-vb] | 120 |
|
| 4 | [was/were] not [to-vb] [art] | 90 |
|
