| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [verb] an | 1163 |
|
| 2 | which involve [art] | 276 |
|
| 3 | which involve [art] | 276 |
|
| 4 | which involve a | 101 |
|
| 5 | [pron] involve an | 39 |
|
