| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] have been [vb pp] [prep] | 2519 |
|
| 2 | should have been [vb pp] [prep] | 336 |
|
| 3 | [conj] should have been [vb pp] | 67 |
|
| 4 | [conj] should have [vb pp] [prep] | 20 |
|
