| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could have [vb pp] either way | 10 |
|
| 2 | could have [vb pp] either way | 10 |
|
| 3 | could have [vb pp] either way | 10 |
|
| 4 | could have gone either way | 9 |
|
