| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] not be produced [prep] | 11 |
|
| 2 | [vb mod] not be produced [prep] | 11 |
|
| 3 | [modal v] not be produced [prep] | 9 |
|
| 4 | can not be produced [prep] | 5 |
|
| 5 | can not be produced [prep] | 5 |
|
