| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] to have had [art] [adj] effect | 16 |
|
| 2 | seem to have had [art] [adj] effect | 9 |
|
| 3 | [vb -s] to have had [art] [adj] effect | 6 |
|
| 4 | to have had [art] [adj] effect [prep] | 12 |
|
| 5 | to have had [art] [adj] effect [prep] | 12 |
|
| 6 | to have had [art] [adj] effect on | 9 |
|
| 7 | to have had [art] [adj] effect on | 9 |
|
