| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] could [adv] have [verb] | 88 |
|
| 2 | [noun pl] could [adv] have [verb] | 42 |
|
| 3 | [noun] could possibly have [verb] | 15 |
|
| 4 | [noun pl] could possibly [verb] [verb] | 8 |
|
| 5 | [noun pl] [modal v] possibly have [verb] | 8 |
|
| 6 | [noun pl] could possibly have [verb] | 6 |
|
