| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] n't [verb] | 56974 |
|
| 2 | must [adv] [verb] | 4551 |
|
| 3 | must [not/n't] [verb] | 1629 |
|
| 4 | must not [verb] | 1629 |
|
