| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could have [verb] [noun] | 298 |
|
| 2 | have [verb] for [noun] | 199 |
|
| 3 | could [verb] for [noun] | 148 |
|
| 4 | could have [verb] for | 88 |
|
