| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could have had [noun] | 18 |
|
| 2 | could have have [noun] | 18 |
|
| 3 | could have have [noun] | 16 |
|
| 4 | could have have [noun sg] | 9 |
|
| 5 | could have have [noun pl] | 6 |
|
