| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | the [noun] [modal v] [be] held [prep] | 127 |
|
| 2 | [art] conference [modal v] [be] held [prep] | 17 |
|
| 3 | the conference [modal v] [be] [verb] [prep] | 17 |
|
| 4 | the conference [modal v] [be] [vb pp] [prep] | 16 |
|
| 5 | the conference [modal v] [be] hold [prep] | 11 |
|
