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