| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which have [adv] been [vb pp] | 1014 |
|
| 2 | have [adv] been [vb pp] for | 655 |
|
| 3 | which have been [vb pp] for | 178 |
|
| 4 | which have [adv] [vb pp] for | 15 |
|
