| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [vb past] be responsible for | 7 |
|
| 2 | [Wh det] [vb past] be responsible [prep] | 7 |
|
| 3 | [Wh det] [vb past] be responsible for | 7 |
|
| 4 | [Wh det] [vb past] be responsible [prep] | 7 |
|
