| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] could be [vb pp] from [art] | 10 |
|
| 2 | which could be [vb pp] from [art] | 9 |
|
| 3 | [Wh det] could be [vb pp] from a | 6 |
|
| 4 | [Wh det] could be [vb pp] from a | 5 |
|
