| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could have [verb] [prep] [art] [noun] | 181 |
|
| 2 | [modal v] have come [prep] [art] [noun] | 110 |
|
| 3 | could [verb] come [prep] [art] [noun] | 17 |
|
| 4 | could [vb infin] come [prep] [art] [noun] | 17 |
|
| 5 | could have come [prep] [art] [noun] | 15 |
|
| 6 | could have come [prep] [art] [noun] | 14 |
|
