| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [pron] could have | 529 |
|
| 2 | [noun prp] [verb] [pron] could | 362 |
|
| 3 | [noun prp] [pron] could have | 23 |
|
| 4 | [noun prp] [verb] [pron] have | 22 |
|
