| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it should [verb] [prep] | 255 |
|
| 2 | it [vb mod] [verb] at | 206 |
|
| 3 | it [modal v] [verb] at | 206 |
|
| 4 | [pron] should [verb] at | 170 |
|
| 5 | it should [verb] at | 15 |
|
