| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] hold [prep] | 1106 |
|
| 2 | conference [be] hold [prep] | 54 |
|
| 3 | conference [modal v] [be] hold | 39 |
|
| 4 | conference [modal v] [be] [prep] | 6 |
|
