| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [be] [adj] | 5974 |
|
| 2 | [vb mod] [be] [det] | 4282 |
|
| 3 | [modal v] [be] [det] | 4282 |
|
| 4 | should [be] [det] | 317 |
|
