| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] appoint head | 12 |
|
| 2 | have [be] appointed head | 12 |
|
| 3 | have been appoint head | 12 |
|
| 4 | have be appoint head | 12 |
|
| 5 | has [be] appoint head | 8 |
|
