| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [not/n't] [be] [verb] to | 813 |
|
| 2 | must [not/n't] [be] [verb] [prep] | 185 |
|
| 3 | must [not/n't] [be] [verb] [prep] | 185 |
|
| 4 | must [adv] [be] [verb] to | 101 |
|
| 5 | must [not/n't] [be] [verb] to | 34 |
|
