| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] i could have [verb] | 125 |
|
| 2 | [conj] i [modal v] have do | 56 |
|
| 3 | [conj] i [vb mod] have do | 56 |
|
| 4 | [conj] [pron] could have do | 53 |
|
| 5 | [conj] [pers pn] could have do | 50 |
|
| 6 | [conj] i could have do | 9 |
|
| 7 | [conj] i could have do | 9 |
|
| 8 | [conj] i could [verb] do | 9 |
|
