| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [vb pp] [prep] | 15645 |
|
| 2 | been [vb pp] [prep] [det] | 3415 |
|
| 3 | had [vb pp] [prep] [det] | 1180 |
|
| 4 | had been [prep] [det] | 171 |
|
| 5 | had been [vb pp] [det] | 167 |
|
