| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which has [adv] been [verb] | 339 |
|
| 2 | has [adv] been [verb] for | 202 |
|
| 3 | which has been [verb] for | 81 |
|
| 4 | which has [adv] [verb] for | 6 |
|
