| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [vb past] [been] [prep] [adj] | 40 |
|
| 2 | [vb past] [been] responsible [prep] [adj] | 21 |
|
| 3 | who [vb past] [been] responsible [prep] | 17 |
|
