| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could have [verb] a | 170 |
|
| 2 | [pron] could [verb] for a | 68 |
|
| 3 | [pron] could have [verb] for | 59 |
|
| 4 | could have [verb] for a | 8 |
|
| 5 | [pron] have [verb] for a | 5 |
|
