| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] have been [vb pp] [prep] | 1216 |
|
| 2 | should have been [vb pp] [prep] | 336 |
|
| 3 | [adv] should have [vb pp] [prep] | 13 |
|
| 4 | [adv] should have been [vb pp] | 11 |
|
