| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have had [adj] impact on | 17 |
|
| 2 | have have [adj] impact on | 15 |
|
| 3 | have have [det] impact on | 14 |
|
| 4 | have have little impact on | 11 |
|
| 5 | have have little impact on | 11 |
|
| 6 | has have [adj] impact on | 10 |
|
