| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could n't have [verb] a | 38 |
|
| 2 | could n't [verb] for a | 15 |
|
| 3 | could n't have [verb] for | 12 |
|
| 4 | n't have [verb] for a | 10 |
|
| 5 | could have [verb] for a | 8 |
|
