| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] has had a [adj] effect | 27 |
|
| 2 | [noun sg] has have a [adj] effect | 23 |
|
| 3 | [noun sg] has have a profound effect | 7 |
|
| 4 | [noun sg] has have an [adj] effect | 5 |
|
