| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to have been cause [prep] [art] | 19 |
|
| 2 | to have been caused [prep] [art] | 19 |
|
| 3 | to have been cause by [art] | 18 |
|
| 4 | to have been cause by [art] | 18 |
|
| 5 | to have been cause [prep] a | 9 |
|
| 6 | to have been cause [prep] the | 6 |
|
