| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] has [verb] a major impact | 6 |
|
| 2 | [noun] has have a major impact | 6 |
|
| 3 | [noun] has had a major impact | 6 |
|
| 4 | [noun] has [vb pp] a major impact | 6 |
|
| 5 | [noun sg] has [verb] a major impact | 5 |
|
