| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] [verb] been [prep] | 666 |
|
| 2 | [verb] been president [prep] | 31 |
|
| 3 | [Wh pn] [verb] been president | 11 |
|
| 4 | [Wh pn] [verb] president [prep] | 6 |
|
