| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [to-vb] been [verb] at [noun] | 16 |
|
| 2 | to have been [verb] at [noun] | 16 |
|
| 3 | [to-vb] been [vb pp] at [noun] | 15 |
|
| 4 | [to-vb] been [verb] at [noun prp] | 11 |
|
