| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] have had [art] [adj] effect | 7 |
|
| 2 | [adv] have had [art] [adj] effect | 7 |
|
| 3 | [adv] have had a [adj] effect | 6 |
|
| 4 | [adv] have had [art] [adj] effect | 6 |
|
