| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [verb] | 170330 |
|
| 2 | should be [verb] | 23361 |
|
| 3 | should [be] [verb] | 23361 |
|
| 4 | should [be] [verb] | 23359 |
|
