| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should have [vb pp] a [adj] | 46 |
|
| 2 | should have have a [adj] | 10 |
|
| 3 | should have had a [adj] | 10 |
|
| 4 | should have [verb] a long | 5 |
|
