| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must be [verb] [adj] | 284 |
|
| 2 | must be [vb pp] [adj] | 218 |
|
| 3 | [modal v] be held [adj] | 97 |
|
| 4 | must be held [adj] | 9 |
|
| 5 | must be hold [adj] | 9 |
|
| 6 | must [be] held [adj] | 9 |
|
| 7 | must [be] held [adj] | 9 |
|
| 8 | must be held [adj] | 9 |
|
