| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] [prep] [be] [verb] | 554 |
|
| 2 | should be [vb pp] [prep] [verb] | 339 |
|
| 3 | should be [vb pp] [prep] [be] | 80 |
|
| 4 | should be [vb pp] [be] [verb] | 15 |
|
