| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [not/n't] [vb infin] [verb] [pron] at | 5 |
|
| 2 | should [not/n't] [verb] [verb] [pron] at | 5 |
|
| 3 | should [not/n't] [verb] [verb] [pron] at | 5 |
|
