| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [vb pp] [det] [noun pl] | 3161 |
|
| 2 | could have [vb pp] [det] | 348 |
|
| 3 | could have [vb pp] [noun pl] | 75 |
|
| 4 | could have [det] [noun pl] | 18 |
|
