| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [vb pp] a [adj -er] | 506 |
|
| 2 | could have [vb pp] a | 289 |
|
| 3 | could have a [adj -er] | 14 |
|
| 4 | could have [vb pp] [adj -er] | 10 |
|
