| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | we could have have a [noun sg] | 6 |
|
| 2 | we could have have a [noun] | 6 |
|
| 3 | we could have had a [noun] | 6 |
|
| 4 | we could have have a [noun] | 6 |
|
| 5 | we could have have a [noun] | 5 |
|
