| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could have [verb] [pers pn] for [pron] | 6 |
|
| 2 | could have [vb pp] [pers pn] for [pron] | 6 |
|
| 3 | could have [verb] [pers pn] for [pers pn] | 5 |
|
