| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [be] [verb] to [be] [verb] | 22 |
|
| 2 | should [be] [verb] to [be] [vb pp] | 18 |
|
| 3 | [modal v] [be] [verb] to [be] done | 10 |
|
| 4 | should [be] [verb] to [be] do | 7 |
|
| 5 | should [be] [verb] [prep] [be] done | 5 |
|
| 6 | should [be] [verb] to [be] done | 5 |
|
| 7 | should [be] [verb] [prep] [be] done | 5 |
|
