| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] have had a [adj] | 468 |
|
| 2 | [noun] have a [adj] effect | 273 |
|
| 3 | have had a [adj] effect | 140 |
|
| 4 | [noun] have had a effect | 5 |
|
