| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to have been [verb] at | 65 |
|
| 2 | to have be [vb pp] at | 60 |
|
| 3 | to have be effected at | 5 |
|
| 4 | to have be effect at | 5 |
|
| 5 | to have be [v-ing] at | 5 |
|
