| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [verb] [adv] by | 518 |
|
| 2 | had been [verb] by a | 409 |
|
| 3 | been [verb] [adv] by a | 153 |
|
| 4 | had been [verb] [adv] a | 40 |
|
