| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have had a [adj] impact on | 48 |
|
| 2 | have had a [adj] impact on | 48 |
|
| 3 | have had a [adj] impact on | 45 |
|
| 4 | has had a [adj] impact on | 23 |
|
| 5 | have had a [adj] impact on | 12 |
|
| 6 | have had a major impact on | 9 |
|
| 7 | have had a major impact on | 9 |
|
| 8 | have had a significant impact on | 8 |
|
| 9 | have had a significant impact on | 8 |
|
| 10 | had had a [adj] impact on | 5 |
|
