| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] be found to | 31 |
|
| 2 | had [be] found to | 28 |
|
| 3 | [vb past] been found to | 28 |
|
| 4 | [vb past] [been] found to | 28 |
|
