| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] appoint head of | 10 |
|
| 2 | have [be] appointed head of | 10 |
|
| 3 | have be appoint head of | 10 |
|
| 4 | have been appoint head of | 10 |
|
| 5 | have [be] appoint head of | 10 |
|
| 6 | has [be] appoint head of | 6 |
|
