| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to have [vb pp] a [adj] effect | 14 |
|
| 2 | to have had a [adj] effect | 14 |
|
| 3 | to have [verb] a [adj] effect | 14 |
|
| 4 | to have have a [adj] effect | 14 |
|
