| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | he [vb mod] have been do | 12 |
|
| 2 | he [modal v] have been do | 12 |
|
| 3 | he [modal v] have been doing | 7 |
|
| 4 | he [modal v] have been done | 5 |
|
