| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was [to-vb] [noun] | 1484 |
|
| 2 | was [verb] president | 155 |
|
| 3 | [be] [to-vb] president | 6 |
|
| 4 | be [to-vb] president | 6 |
|
| 5 | [was/were] [to-vb] president | 5 |
|
