| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] have had [art] [adj] effect | 10 |
|
| 2 | [adj] have had a [adj] effect | 9 |
|
| 3 | [num] have had [art] [adj] effect | 6 |
|
| 4 | [adj] has had [art] [adj] effect | 5 |
|
