| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could n't have [vb pp] [art] | 64 |
|
| 2 | could have [vb pp] [art] [adj -er] | 21 |
|
| 3 | n't have [vb pp] [art] [adj -er] | 19 |
|
| 4 | could n't have [art] [adj -er] | 8 |
|
