| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have been [vb pp] in [det] | 20 |
|
| 2 | it has been [vb pp] in [det] | 13 |
|
| 3 | it have been [vb pp] in some | 7 |
|
| 4 | it have been [vb pp] in this | 6 |
|
