| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could have [verb] [verb] | 130 |
|
| 2 | could have [vb pp] [verb] | 127 |
|
| 3 | could have [verb] [verb] | 127 |
|
| 4 | could have [verb] [to-vb] | 88 |
|
| 5 | could have [verb] [v-ing] | 20 |
|
| 6 | could have do [verb] | 16 |
|
| 7 | could have done [verb] | 16 |
|
| 8 | could have [verb] have | 10 |
|
| 9 | could have [verb] [vb past] | 10 |
|
| 10 | could have [verb] had | 7 |
|
| 11 | could have choose [verb] | 7 |
|
| 12 | could have [verb] make | 7 |
|
| 13 | could have go [verb] | 7 |
|
| 14 | could have chosen [verb] | 7 |
|
| 15 | could have gone [verb] | 7 |
|
| 16 | could have tried [verb] | 6 |
|
| 17 | could have try [verb] | 6 |
|
| 18 | could have fail [verb] | 6 |
|
| 19 | could have failed [verb] | 6 |
|
| 20 | could have [verb] to see | 5 |
|
| 21 | could have expect [verb] | 5 |
|
| 22 | could have expected [verb] | 5 |
|
| 23 | could have manage [verb] | 5 |
|
| 24 | could have afford [verb] | 5 |
|
| 25 | could have [verb] [vb infin] | 5 |
|
| 26 | could have [verb] [vb pp] | 5 |
|
| 27 | could have [verb] see | 5 |
|
| 28 | could have managed [verb] | 5 |
|
| 29 | could have [verb] to make | 5 |
|
