| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [vb mod] have been [verb] | 296 |
|
| 2 | [adj] [modal v] have been [verb] | 296 |
|
| 3 | [adj] must have [been] [verb] | 18 |
|
| 4 | [adj] must [verb] been [verb] | 18 |
|
| 5 | [adj] must have been [verb] | 18 |
|
| 6 | [adj] must have [be] [verb] | 18 |
|
| 7 | [adj] must have be [verb] | 18 |
|
