| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [be] [vb pp] at [art] time | 11 |
|
| 2 | should [be] [verb] at [art] time | 11 |
|
| 3 | should be [verb] at [art] time | 11 |
|
| 4 | should be [verb] at [art] time | 11 |
|
| 5 | should [be] [verb] at the time | 8 |
|
