| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which have [been] [verb] | 4625 |
|
| 2 | [det] have [been] [verb] | 2014 |
|
| 3 | [det] which have [verb] | 100 |
|
| 4 | [det] which have [been] | 92 |
|
