| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] have had [art] effect | 22 |
|
| 2 | [vb mod] have have the effect | 13 |
|
| 3 | would have have [art] effect | 12 |
|
| 4 | [vb mod] have have an effect | 8 |
|
| 5 | may have have [art] effect | 5 |
|
