| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [vb pp] by a | 408 |
|
| 2 | had be replaced by a | 25 |
|
| 3 | had be preceded by a | 12 |
|
| 4 | had be made by a | 9 |
|
| 5 | had be followed by a | 9 |
|
| 6 | had be accompanied by a | 8 |
|
| 7 | had be caused by a | 8 |
|
| 8 | had be approached by a | 7 |
|
| 9 | had be killed by a | 7 |
|
| 10 | had be hit by a | 6 |
|
| 11 | had be taken by a | 6 |
|
| 12 | had be joined by a | 5 |
|
| 13 | had be hired by a | 5 |
|
| 14 | had be confirmed by a | 5 |
|
| 15 | had be bought by a | 5 |
|
