| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [not/n't] [vb infin] i | 1620 |
|
| 2 | must [not/n't] [vb infin] [pron] | 338 |
|
| 3 | must [adv] [vb infin] i | 20 |
|
| 4 | must [not/n't] [verb] i | 18 |
|
