| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] be often [vb pp] to [be] | 12 |
|
| 2 | [Wh det] be often [vb pp] to be | 12 |
|
| 3 | which be often [vb pp] to [be] | 9 |
|
| 4 | [Wh det] is often [vb pp] to [be] | 9 |
|
