| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [vb mod] [prep] [be] | 321 |
|
| 2 | [Wh det] [vb mod] [prep] be | 321 |
|
| 3 | [pron] [vb mod] [prep] been | 261 |
|
| 4 | [Wh det] [vb mod] [prep] [been] | 5 |
|
| 5 | [Wh det] [modal v] [prep] been | 5 |
|
