| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could have [vb pp] [adv] [adj -er] | 6 |
|
| 2 | could have [vb pp] [adv] [adj -er] | 6 |
|
|
|
could have [vb pp] [adv] [adj -er] Next page
|