| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [vb pp] [prep] a | 5751 |
|
| 2 | have been [vb pp] [prep] recent | 134 |
|
| 3 | been [vb pp] [prep] a recent | 25 |
|
| 4 | have [vb pp] [prep] a recent | 12 |
|
