| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to have been [verb] at the time | 12 |
|
| 2 | to have be [vb pp] at the time | 11 |
|
| 3 | to have be effect at the time | 5 |
|
| 4 | to have be effected at the time | 5 |
|
