| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to have been cause [prep] [adj] | 5 |
|
| 2 | to have been cause by [adj] | 5 |
|
| 3 | to have been caused [prep] [adj] | 5 |
|
| 4 | to have been cause by [adj] | 5 |
|
