| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [modal v] [be] hold [prep] [art] | 249 |
|
| 2 | conference [modal v] [be] [verb] [prep] [art] | 17 |
|
| 3 | conference [modal v] [be] hold [prep] [art] | 10 |
|
