| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should be [vb pp] [prep] [adj] | 801 |
|
| 2 | be [vb pp] [prep] [be] [adj] | 492 |
|
| 3 | should be [vb pp] [prep] [be] | 80 |
|
| 4 | should be [vb pp] [be] [adj] | 6 |
|
