| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have have a [adv] [adj] impact | 6 |
|
| 2 | have had [art] [adv] [adj] impact | 6 |
|
| 3 | have have [art] [adv] [adj] impact | 6 |
|
| 4 | have have a [adv] [adj] impact | 5 |
|
