| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which have [verb] | 9021 |
|
| 2 | which have [vb pp] | 8903 |
|
| 3 | [pron] have involved | 59 |
|
| 4 | which [verb] involved | 21 |
|
| 5 | which have involve | 20 |
|
