| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i could have done [prep] a | 7 |
|
| 2 | i could have done [prep] a | 7 |
|
| 3 | i [modal v] have done [prep] a | 7 |
|
| 4 | i [vb mod] have done [prep] a | 7 |
|
