| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] been [adv] responsible for | 10 |
|
| 2 | had been [adv] responsible for | 10 |
|
| 3 | [vb past] been [adv] responsible for | 10 |
|
| 4 | [vb past] been [adv] responsible for | 10 |
|
