| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [been] in [noun] | 619 |
|
| 2 | [Wh det] [vb past] in [noun] | 559 |
|
| 3 | [Wh det] [vb past] [been] in | 67 |
|
| 4 | [Wh det] [vb past] [been] [noun] | 40 |
|
