| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [adv] [vb pp] | 2632 |
|
| 2 | which has been [vb pp] | 1328 |
|
| 3 | which has [adv] [vb pp] | 576 |
|
| 4 | which has been [adv] | 265 |
|
