| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] n't [vb infin] | 56886 |
|
| 2 | must [adv] [vb infin] | 4539 |
|
| 3 | must not [vb infin] | 1625 |
|
| 4 | must [not/n't] [vb infin] | 1625 |
|
| 5 | must n't [verb] | 647 |
|
