| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [verb] [det] | 1496 |
|
| 2 | should have [been] [verb] | 882 |
|
| 3 | should have [verb] [det] | 249 |
|
| 4 | should have [been] [det] | 13 |
|
