| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [not/n't] [be] [verb] | 548 |
|
| 2 | must [not/n't] [be] [vb pp] | 544 |
|
| 3 | [modal v] [not/n't] [be] assumed | 106 |
|
| 4 | must [adv] [be] assumed | 11 |
|
| 5 | must [not/n't] [be] assume | 8 |
|
