| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not [vb infin] [be] possible | 66 |
|
| 2 | not [vb infin] [be] [conj] | 52 |
|
| 3 | not [be] possible [conj] | 15 |
|
| 4 | [vb infin] [be] possible [conj] | 15 |
|
| 5 | not [vb infin] possible [conj] | 5 |
|
