| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which can [be] [vb pp] to be | 18 |
|
| 2 | [Wh det] can be [vb pp] to be | 18 |
|
| 3 | [Wh det] can [be] [vb pp] to be | 18 |
|
