| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have been [verb] | 7006 |
|
| 2 | [modal v] have [verb] for | 765 |
|
| 3 | have been [verb] for | 350 |
|
| 4 | [modal v] have been for | 62 |
|
