| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had have [art] [adj] impact | 8 |
|
| 2 | had have a [adj] impact | 8 |
|
| 3 | had have [art] [adj] impact | 8 |
|
| 4 | had had [art] [adj] impact | 7 |
|
| 5 | had have a [adj] impact | 7 |
|
