| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it must [adv] be assumed | 8 |
|
| 2 | it must [not/n't] be assumed | 8 |
|
| 3 | it must not be assumed | 8 |
|
| 4 | it must not be assumed | 8 |
|
| 5 | it must be assumed [that] | 12 |
|
| 6 | it must be assumed [conj] | 12 |
|
| 7 | it must be assumed that | 12 |
|
| 8 | it must be assumed that | 12 |
|
