| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and must [not/n't] be [vb pp] [prep] | 16 |
|
| 2 | [coord] must [not/n't] be [vb pp] [prep] | 16 |
|
| 3 | [coord] must not be [vb pp] [prep] | 15 |
|
| 4 | [coord] must [not/n't] be [vb pp] for | 5 |
|
| 5 | [coord] must [not/n't] be [vb pp] for | 5 |
|
