| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] have had a significant | 10 |
|
| 2 | [noun sg] have had a significant | 5 |
|
| 3 | [noun pl] have had a significant | 5 |
|
| 4 | have had a significant [noun sg] | 22 |
|
| 5 | have had a significant [noun] | 22 |
|
| 6 | have had a significant impact | 9 |
|
| 7 | have had a significant impact | 9 |
|
| 8 | have had a significant effect | 5 |
|
| 9 | have had a significant effect | 5 |
|
