| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] at [art] | 397 |
|
| 2 | it should [verb] [art] | 228 |
|
| 3 | should [verb] at [art] | 115 |
|
| 4 | it should [verb] at | 15 |
|
