| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which have [verb] | 9021 |
|
| 2 | which have [vb pp] | 8903 |
|
| 3 | [pron] have caused | 407 |
|
| 4 | [Wh det] have caused | 186 |
|
| 5 | which have cause | 143 |
|
| 6 | which have caused | 143 |
|
| 7 | which [verb] caused | 143 |
|
