| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should be [verb] to be [adj] | 24 |
|
| 2 | should be [vb pp] [prep] be [adj] | 24 |
|
| 3 | should be hold [prep] be [adj] | 5 |
|
| 4 | should be held [prep] be [adj] | 5 |
|
