| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have been [verb] | 7119 |
|
| 2 | [vb mod] have been [verb] | 7119 |
|
| 3 | should have [been] [verb] | 882 |
|
| 4 | should have been [verb] | 882 |
|
| 5 | should [verb] been [verb] | 882 |
|
| 6 | should have be [verb] | 882 |
|
| 7 | should have [be] [verb] | 882 |
|
