| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [vb pp] president | 14 |
|
| 2 | have been elected president | 11 |
|
| 3 | has been [vb pp] president | 10 |
|
| 4 | have been named president | 5 |
|
| 5 | have been appointed president | 5 |
|
