| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [vb pp] at [det] | 178 |
|
| 2 | to have been [vb pp] at | 60 |
|
| 3 | to have been [vb pp] [det] | 24 |
|
| 4 | to have [vb pp] at [det] | 13 |
|
