| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should have been [vb pp] [art] | 23 |
|
| 2 | should have [been] [vb pp] [art] | 23 |
|
| 3 | should have [been] [vb pp] a | 19 |
|
| 4 | should have [been] [vb pp] a | 17 |
|
| 5 | should have [been] given [art] | 9 |
|
