| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has had a [adj] impact on | 23 |
|
| 2 | has have a [adj] impact on | 23 |
|
| 3 | has have a [adj] impact on | 23 |
|
| 4 | has have a [adj] impact on | 22 |
|
| 5 | has have a major impact on | 6 |
|
| 6 | has have a major impact on | 6 |
|
