| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could have [vb pp] more [noun] | 12 |
|
| 2 | could have [verb] more [noun] | 12 |
|
| 3 | could have [verb] more [noun sg] | 6 |
|
| 4 | could have [verb] more [noun pl] | 6 |
|
