| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] [prep] a | 5419 |
|
| 2 | only have been [verb] [prep] | 44 |
|
| 3 | only been [verb] [prep] a | 21 |
|
| 4 | only have [verb] [prep] a | 17 |
|
