| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [be] held [prep] [art] | 8 |
|
| 2 | must [be] hold [prep] [art] | 8 |
|
| 3 | must [be] hold [prep] [art] | 8 |
|
| 4 | must be hold [prep] [art] | 8 |
|
