| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [vb pp] [prep] a | 1801 |
|
| 2 | which had been [vb pp] [prep] | 1251 |
|
| 3 | which had [vb pp] [prep] a | 68 |
|
| 4 | which had been [vb pp] a | 13 |
|
| 5 | which had been [prep] a | 5 |
|
