| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could have [verb] [pers pn] | 876 |
|
| 2 | have [verb] [pers pn] that | 208 |
|
| 3 | could have [verb] that | 94 |
|
| 4 | could [verb] [pers pn] that | 37 |
|
