| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb mod] not be assumed | 72 |
|
| 2 | it should [not/n't] be assumed | 33 |
|
| 3 | it can [not/n't] be assumed | 27 |
|
| 4 | it must [not/n't] be assumed | 8 |
|
