| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [verb] be [verb] [prep] | 380 |
|
| 2 | [vb mod] [verb] be [verb] at | 142 |
|
| 3 | [modal v] [verb] be [verb] at | 142 |
|
| 4 | should [verb] [be] [verb] at | 26 |
|
| 5 | should [verb] be [verb] at | 26 |
|
