| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have had a [adj] effect [prep] | 17 |
|
| 2 | have had a [adj] effect [prep] | 17 |
|
| 3 | have had a [adj] effect [prep] | 16 |
|
| 4 | have had a [adj] effect on | 15 |
|
| 5 | have had a [adj] effect on | 15 |
|
