| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [vb pp] [prep] | 15645 |
|
| 2 | had been [vb pp] [prep] | 15645 |
|
| 3 | [verb] been [vb pp] at | 1630 |
|
| 4 | have been [vb pp] at | 1630 |
|
| 5 | had been [verb] at | 699 |
|
| 6 | [vb past] been [vb pp] at | 568 |
|
| 7 | had [been] [vb pp] at | 549 |
|
| 8 | had be [vb pp] at | 549 |
|
| 9 | had been [vb pp] at | 549 |
|
| 10 | had [be] [vb pp] at | 549 |
|
