| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] in a | 776 |
|
| 2 | [Wh det] have been [verb] in | 642 |
|
| 3 | [Wh det] have been [verb] a | 52 |
|
| 4 | [Wh det] have [verb] in a | 28 |
|
| 5 | [Wh det] have been in a | 6 |
|
