| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [coord] should be [vb pp] by | 10 |
|
| 2 | can [coord] should be [vb pp] by | 9 |
|
| 3 | can [coord] should be [vb pp] by | 9 |
|
| 4 | [modal v] and should be [vb pp] by | 8 |
|
