| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which has [adv] [been] [verb] [det] | 5 |
|
| 2 | which have [adv] [been] [vb pp] [det] | 5 |
|
| 3 | which have [adv] been [verb] [det] | 5 |
|
