| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [to-vb] been effected at the time | 5 |
|
| 2 | to have been effected at the time | 5 |
|
| 3 | [verb] been effected at the time | 5 |
|
| 4 | have been effected at the time | 5 |
|
| 5 | [verb] been effected at the time | 5 |
|
