| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] not be | 25780 |
|
| 2 | [vb mod] not be | 25780 |
|
| 3 | must [adv] be | 2734 |
|
| 4 | must not be | 814 |
|
| 5 | must [not/n't] be | 814 |
|
| 6 | must not be | 732 |
|
| 7 | must not [be] | 732 |
|
