| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should be [vb pp] | 21722 |
|
| 2 | [not/n't] be [vb pp] | 21700 |
|
| 3 | should [not/n't] be | 4206 |
|
| 4 | should [not/n't] [vb pp] | 5 |
|
