| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had be [vb pp] [prep] a [noun pl] | 13 |
|
| 2 | had been [vb pp] [prep] a [noun pl] | 13 |
|
| 3 | had be [vb pp] by a [noun pl] | 6 |
|
