| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which had [been] [vb pp] [to-vb] [adj] | 9 |
|
| 2 | which had [be] [vb pp] [to-vb] [adj] | 9 |
|
| 3 | which had been [vb pp] [to-vb] [adj] | 9 |
|
| 4 | which had be [vb pp] [to-vb] [adj] | 9 |
|
