| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] have [verb] | 807 |
|
| 2 | could [adv] have [vb pp] | 806 |
|
| 3 | could [adv] have said | 48 |
|
| 4 | [vb mod] [adv] have said | 44 |
|
| 5 | [modal v] [adv] have said | 44 |
|
| 6 | could [adv] have say | 7 |
|
| 7 | could [adv] have said | 7 |
|
| 8 | could [adv] [verb] said | 7 |
|
