| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [Wh det] [vb past] [prep] [noun] | 200 |
|
| 2 | [Wh det] [vb past] [been] [prep] [noun] | 70 |
|
| 3 | [prep] [Wh det] [vb past] [been] [prep] | 11 |
|
| 4 | [prep] [Wh det] [vb past] [been] [noun] | 8 |
|
