| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have had [art] effect | 22 |
|
| 2 | [vb mod] have had [art] effect | 22 |
|
| 3 | [modal v] have had [art] effect | 22 |
|
| 4 | [modal v] have had [art] effect | 22 |
|
| 5 | [modal v] have had the effect | 13 |
|
| 6 | [modal v] have had the effect | 13 |
|
| 7 | would have had [art] effect | 12 |
|
| 8 | would have had [art] effect | 12 |
|
| 9 | [modal v] have had an effect | 8 |
|
| 10 | [modal v] have had a effect | 8 |
|
| 11 | may have had [art] effect | 5 |
|
| 12 | may have had [art] effect | 5 |
|
