| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] [be] [verb] to | 1081 |
|
| 2 | must [be] [verb] to | 714 |
|
| 3 | must [not/n't] [be] [verb] | 548 |
|
| 4 | must [not/n't] [verb] to | 31 |
|
