| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] have had a [adj] | 195 |
|
| 2 | have had a [adj] impact | 60 |
|
| 3 | [noun sg] have a [adj] impact | 51 |
|
| 4 | [noun sg] have had [adj] impact | 8 |
|
