| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [vb pp] [prep] a recent | 20 |
|
| 2 | have been [vb pp] [prep] a recent | 20 |
|
| 3 | have been [vb pp] in a recent | 11 |
|
| 4 | have been [vb pp] in a recent | 11 |
|
| 5 | had been [vb pp] [prep] a recent | 7 |
|
| 6 | has been [vb pp] [prep] a recent | 6 |
|
| 7 | have been [vb pp] by a recent | 5 |
|
| 8 | have been [vb pp] by a recent | 5 |
|
