| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | this has been [verb] | 590 |
|
| 2 | [n mass] has been [verb] | 327 |
|
| 3 | this [n mass] has been | 25 |
|
| 4 | this [n mass] has [verb] | 8 |
|
