| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have have [art] [adj] [noun] | 196 |
|
| 2 | could have [verb] [art] [adj] [noun] | 156 |
|
| 3 | could have have [art] [adj] [noun] | 26 |
|
| 4 | could [verb] have [art] [adj] [noun] | 19 |
|
