| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [verb] [adv] [noun] | 746 |
|
| 2 | could have [verb] [adv] | 368 |
|
| 3 | could have [verb] [noun] | 310 |
|
| 4 | could [verb] [adv] [noun] | 96 |
|
