| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [not/n't] [vb infin] [pron] [vb past] | 10 |
|
| 2 | should not [verb] [pron] [vb past] | 6 |
|
| 3 | should [not/n't] [verb] [pers pn] [vb past] | 6 |
|
