| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] have been responsible for | 29 |
|
| 2 | [noun prp] [verb] been responsible for | 29 |
|
| 3 | [noun prp] had been responsible for | 16 |
|
| 4 | [noun prp] [vb past] been responsible for | 16 |
|
| 5 | [noun prp] [vb -s] been responsible for | 11 |
|
| 6 | [noun prp] has been responsible for | 11 |
|
