| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] as chairman | 26 |
|
| 2 | [vb past] as chairman | 19 |
|
| 3 | serve as chairman | 16 |
|
| 4 | [vb infin] as chairman | 15 |
|
| 5 | act as chairman | 15 |
|
| 6 | [to-vb] as chairman | 12 |
|
| 7 | [v-ing] as chairman | 12 |
|
| 8 | resign as chairman | 11 |
|
| 9 | continue as chairman | 7 |
|
| 10 | served as chairman | 6 |
|
| 11 | retire as chairman | 6 |
|
| 12 | to act as chairman | 5 |
|
| 13 | continue as chairman | 5 |
|
| 14 | served as chairman | 5 |
|
