| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [not/n't] [be] | 35070 |
|
| 2 | [modal v] [not/n't] [be] | 35070 |
|
| 3 | should [adv] [be] | 7103 |
|
| 4 | should [not/n't] [be] | 4206 |
|
