| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] not be assumed | 105 |
|
| 2 | can not be assumed | 53 |
|
| 3 | should not be assumed | 36 |
|
| 4 | must not be assumed | 8 |
|
| 5 | could not be assumed | 7 |
|
