| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [vb pp] to [be] | 103 |
|
| 2 | had [been] [vb pp] to be | 103 |
|
| 3 | had [been] [vb pp] to be | 102 |
|
| 4 | had [been] [vb pp] to [be] | 102 |
|
| 5 | had [been] found to [be] | 28 |
|
| 6 | had [been] shown to [be] | 13 |
|
