| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [verb] [prep] | 5571 |
|
| 2 | should [verb] [prep] | 5570 |
|
| 3 | [modal v] [verb] at | 5235 |
|
| 4 | should [verb] at | 390 |
|
