| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] for a | 477 |
|
| 2 | [Wh det] have been [verb] for | 235 |
|
| 3 | [Wh det] have been [verb] a | 52 |
|
| 4 | [Wh det] have [verb] for a | 12 |
|
