| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] been [art] cause | 8 |
|
| 2 | [vb base] been [art] cause | 8 |
|
| 3 | have been [art] cause | 7 |
|
| 4 | [vb base] been the cause | 6 |
|
| 5 | [vb base] been the cause | 6 |
|
