| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [art] | 31324 |
|
| 2 | should be [art] | 2401 |
|
| 3 | should [be] [art] | 2401 |
|
| 4 | should [be] [art] | 2397 |
|
| 5 | should be [art] | 2397 |
|
