| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to have [been] [vb pp] at [det] [noun] | 5 |
|
| 2 | to have [been] [vb pp] at [det] [noun sg] | 5 |
|
| 3 | to have been [vb pp] at [det] [noun] | 5 |
|
