| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | this has been [vb pp] | 562 |
|
| 2 | [adv] has been [vb pp] | 249 |
|
| 3 | [adv] this has [vb pp] | 61 |
|
| 4 | [adv] this has been | 41 |
|
