| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must not be [verb] to be | 5 |
|
| 2 | must not be [verb] to be | 5 |
|
| 3 | must not [be] [vb pp] to be | 5 |
|
| 4 | must not [be] [verb] to be | 5 |
|
| 5 | must not [be] [verb] to be | 5 |
|
