| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [not/n't] be [verb] | 548 |
|
| 2 | [modal v] [not/n't] be think | 67 |
|
| 3 | must [adv] be think | 14 |
|
| 4 | must [not/n't] [be] think | 12 |
|
| 5 | must [not/n't] be think | 12 |
|
| 6 | must [not/n't] [be] think | 12 |
|
