| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could have [vb pp] [noun pl] | 72 |
|
| 2 | could have [vb pp] things | 8 |
|
| 3 | could have had [noun pl] | 6 |
|
| 4 | could have taken [noun pl] | 5 |
|
