| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could have [vb pp] a [adj] [noun sg] | 91 |
|
| 2 | could have [verb] a [adj] [noun sg] | 89 |
|
| 3 | could have [verb] a [adj] [noun sg] | 74 |
|
| 4 | could have have a [adj] [noun sg] | 17 |
|
| 5 | could have had a [adj] [noun sg] | 17 |
|
| 6 | could have [verb] a [adj -er] [noun sg] | 16 |
|
| 7 | could have [verb] a good [noun sg] | 14 |
|
| 8 | could have made a [adj] [noun sg] | 11 |
|
| 9 | could have make a [adj] [noun sg] | 11 |
|
| 10 | could have [verb] a better [noun sg] | 9 |
|
| 11 | could have [verb] a good [noun sg] | 5 |
|
