| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] [prep] a | 5419 |
|
| 2 | have often been [verb] [prep] | 177 |
|
| 3 | often been [verb] [prep] a | 19 |
|
| 4 | have often [verb] [prep] a | 8 |
|
| 5 | have often been [verb] a | 7 |
|
