| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [be] [vb pp] [prep] [adj] | 801 |
|
| 2 | [be] [vb pp] [prep] [be] [adj] | 457 |
|
| 3 | should [be] [vb pp] [prep] [be] | 72 |
|
