| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [verb] [prep] a | 1853 |
|
| 2 | [Wh det] has been [verb] [prep] | 1055 |
|
| 3 | [Wh det] has [verb] [prep] a | 58 |
|
| 4 | [Wh det] has been [verb] a | 36 |
|
| 5 | [Wh det] has been [prep] a | 5 |
|
