| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [not/n't] be [vb pp] | 2510 |
|
| 2 | it should be [vb pp] | 2131 |
|
| 3 | it should [not/n't] be | 461 |
|
| 4 | it [not/n't] be [vb pp] | 19 |
|
