| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [verb] [prep] [art] | 1973 |
|
| 2 | should [verb] [prep] [art] | 1973 |
|
| 3 | [modal v] [verb] at [art] | 1574 |
|
| 4 | should [verb] at [art] | 115 |
|
| 5 | should [verb] at [art] | 115 |
|
