| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [vb pp] [prep] [art] [noun] | 1626 |
|
| 2 | could have [vb pp] [art] [noun] | 557 |
|
| 3 | could have [vb pp] [prep] [art] | 269 |
|
| 4 | could have [vb pp] [prep] [noun] | 137 |
|
| 5 | could have [prep] [art] [noun] | 13 |
|
