| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] have [vb pp] [art] [adj -er] | 49 |
|
| 2 | could [adv] have [vb pp] a [adj -er] | 46 |
|
| 3 | could not have [vb pp] [art] [adj -er] | 40 |
|
| 4 | could [not/n't] have [vb pp] [art] [adj -er] | 40 |
|
| 5 | could [adv] have [vb pp] [art] better | 35 |
|
| 6 | could not have [vb pp] [art] [adj -er] | 22 |
|
| 7 | could n't have [vb pp] [art] [adj -er] | 18 |
|
| 8 | could [adv] have chosen [art] [adj -er] | 13 |
|
| 9 | could [adv] have had [art] [adj -er] | 9 |
|
| 10 | could [adv] have [vb pp] [art] [adj -er] | 9 |
|
| 11 | could [adv] have made [art] [adj -er] | 8 |
|
| 12 | could [adv] have picked [art] [adj -er] | 5 |
|
