| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] a substantial impact | 13 |
|
| 2 | have a substantial impact | 8 |
|
| 3 | [vb infin] a substantial impact | 6 |
|
| 4 | have a substantial impact | 5 |
|
| 5 | make a substantial impact | 5 |
|
| 6 | a substantial impact [prep] | 11 |
|
| 7 | a substantial impact [prep] | 11 |
|
| 8 | a substantial impact on | 10 |
|
| 9 | a substantial impact on | 10 |
|
