| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] have be president of | 8 |
|
| 2 | who [verb] be president of | 8 |
|
| 3 | [Wh pn] [verb] been president of | 8 |
|
| 4 | [Wh pn] [verb] be president of | 8 |
|
| 5 | [Wh pn] had be president of | 7 |
|
| 6 | [Wh pn] [vb past] be president of | 7 |
|
