| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | this [modal v] [not/n't] be | 778 |
|
| 2 | this must [adv] be | 48 |
|
| 3 | [adj] must [not/n't] be | 32 |
|
| 4 | [det] must [not/n't] be | 26 |
|
| 5 | this must [not/n't] be | 16 |
|
| 6 | this must [not/n't] [be] | 16 |
|
