| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had be [vb pp] to be [adj] | 22 |
|
| 2 | had [been] [vb pp] to be [adj] | 22 |
|
| 3 | had been [vb pp] to be [adj] | 22 |
|
| 4 | had [be] shown to be [adj] | 6 |
|
| 5 | had [be] found to be [adj] | 5 |
|
