| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] have [verb] a [adj] effect | 20 |
|
| 2 | [vb mod] have [vb pp] a [adj] effect | 20 |
|
| 3 | [vb mod] have had a [adj] effect | 17 |
|
| 4 | [vb mod] have have a [adj] effect | 17 |
|
| 5 | would have [verb] a [adj] effect | 8 |
|
