| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] president [prep] | 31 |
|
| 2 | [verb] been president [prep] | 31 |
|
| 3 | [verb] [been] president [prep] | 31 |
|
| 4 | [verb] [been] president of | 28 |
|
| 5 | [verb] [been] president of | 28 |
|
| 6 | [vb past] [been] president [prep] | 26 |
|
| 7 | had [been] president [prep] | 24 |
|
