| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [not/n't] [vb infin] | 4877 |
|
| 2 | [not/n't] [vb infin] and | 1377 |
|
| 3 | should [vb infin] and | 447 |
|
| 4 | should [not/n't] and | 10 |
|
