| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could have [verb] [prep] | 898 |
|
| 2 | could have [vb pp] [prep] | 891 |
|
| 3 | [vb mod] have come [prep] | 348 |
|
| 4 | [modal v] have come [prep] | 348 |
|
| 5 | could have come [prep] | 55 |
|
| 6 | could have come [prep] | 55 |
|
| 7 | could [verb] come [prep] | 55 |
|
| 8 | could have come [prep] | 55 |
|
