| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [vb pp] [prep] some reason | 10 |
|
| 2 | have been [vb pp] [prep] some reason | 10 |
|
| 3 | have been [vb pp] for some reason | 10 |
|
| 4 | have been [vb pp] for some reason | 10 |
|
