| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] [prep] a | 5419 |
|
| 2 | what have been [verb] [prep] | 362 |
|
| 3 | what have [verb] [prep] a | 41 |
|
| 4 | what have been [verb] a | 8 |
|
