| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [be] [vb pp] [verb] | 1866 |
|
| 2 | [be] [vb pp] [be] [verb] | 264 |
|
| 3 | should [be] [vb pp] [be] | 73 |
|
| 4 | should [be] [be] [verb] | 7 |
|
