| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [prep] | 3635 |
|
| 2 | [verb] been at | 1068 |
|
| 3 | have been at | 1067 |
|
| 4 | [vb past] been at | 425 |
|
| 5 | had be at | 382 |
|
| 6 | had [be] at | 382 |
|
| 7 | had [been] at | 380 |
|
