| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have been [verb] | 7006 |
|
| 2 | [adj] [modal v] have [verb] | 1278 |
|
| 3 | [adj] [modal v] have been | 1189 |
|
| 4 | [adj] have been [verb] | 30 |
|
