| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could have done [det] | 52 |
|
| 2 | could have done that | 27 |
|
| 3 | could have done this | 10 |
|
| 4 | could have done such | 6 |
|
| 5 | could have done some | 5 |
|
