| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | conference was hold [prep] the | 10 |
|
| 2 | conference [was/were] hold [prep] the | 10 |
|
| 3 | conference [was/were] held [prep] the | 10 |
|
| 4 | conference [was/were] hold in the | 5 |
|
| 5 | conference [was/were] hold in the | 5 |
|
