| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [verb] as a | 1294 |
|
| 2 | had been [verb] a | 652 |
|
| 3 | had been [verb] as | 460 |
|
| 4 | had [verb] as a | 370 |
|
| 5 | had been as a | 6 |
|
