| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had had a [adj] [noun] | 236 |
|
| 2 | had had a [adj] [noun sg] | 227 |
|
| 3 | [verb] had a [adj] effect | 140 |
|
| 4 | have had a [adj] effect | 140 |
|
| 5 | had had [art] [adj] effect | 13 |
|
| 6 | had [vb pp] a [adj] effect | 13 |
|
| 7 | had [verb] a [adj] effect | 13 |
|
| 8 | had had a [adj] effect | 9 |
|
| 9 | had have a [adj] effect | 9 |
|
| 10 | [vb past] had a [adj] effect | 9 |
|
