| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] have been [verb] [prep] | 3113 |
|
| 2 | on [Wh det] have been [verb] | 36 |
|
| 3 | on [Wh det] have [verb] [prep] | 17 |
|
| 4 | on have been [verb] [prep] | 5 |
|
