| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] [vb base] been [prep] [noun] | 49 |
|
| 2 | [vb base] been involved [prep] [noun] | 43 |
|
| 3 | [Wh pn] [vb base] been involved [prep] | 27 |
|
