| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | conference [modal v] [be] hold on | 6 |
|
| 2 | conference [modal v] [be] hold on | 6 |
|
| 3 | conference [modal v] be hold on | 6 |
|
| 4 | conference [modal v] be hold on | 6 |
|
| 5 | conference [modal v] [be] held on | 6 |
|
| 6 | conference [vb mod] [be] hold on | 6 |
|
