| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it has been [vb pp] | 3465 |
|
| 2 | has been [vb pp] for | 1373 |
|
| 3 | it has [vb pp] for | 60 |
|
| 4 | it has been for | 34 |
|
