| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [vb pp] for several | 15 |
|
| 2 | [vb mod] be [vb pp] for several | 15 |
|
| 3 | can be [vb pp] for several | 5 |
|
| 4 | can be [vb pp] for several | 5 |
|
