| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should be [verb] [to-vb] [art] [det] | 6 |
|
| 2 | should [be] [verb] [to-vb] [art] [det] | 6 |
|
| 3 | should [be] [vb pp] [to-vb] [art] [det] | 6 |
|
