| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it should [verb] at [art] | 7 |
|
| 2 | it should [vb infin] at [art] | 7 |
|
| 3 | it should [verb] at [art] | 7 |
|
| 4 | it should [verb] at the | 7 |
|
