| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [vb pp] [prep] a | 4891 |
|
| 2 | [Wh det] have been [vb pp] [prep] | 2918 |
|
| 3 | [Wh det] have [vb pp] [prep] a | 176 |
|
| 4 | [Wh det] have been [vb pp] a | 37 |
|
| 5 | [Wh det] have been [prep] a | 14 |
|
