| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have be [vb pp] chairman | 27 |
|
| 2 | [verb] been [vb pp] chairman | 27 |
|
| 3 | has be [vb pp] chairman | 22 |
|
| 4 | [vb -s] be [vb pp] chairman | 22 |
|
| 5 | [verb] be appointed chairman | 15 |
|
| 6 | [verb] be elected chairman | 7 |
|
