| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to have been [verb] | 2875 |
|
| 2 | have been cause | 278 |
|
| 3 | [verb] been cause | 278 |
|
| 4 | to have be cause | 36 |
|
| 5 | [to-vb] been cause | 36 |
|
| 6 | to have [be] cause | 36 |
|
| 7 | to have [been] cause | 36 |
|
