| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [vb mod] [verb] | 1674 |
|
| 2 | [vb pp] [modal v] [verb] | 1674 |
|
| 3 | [verb] should [verb] | 323 |
|
| 4 | [vb pp] should [verb] | 112 |
|
