| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [vb infin] [vb pp] [prep] no | 5 |
|
| 2 | should [vb infin] [vb pp] as no | 5 |
|
| 3 | should [vb infin] [vb pp] [prep] no | 5 |
|
| 4 | should [vb infin] [vb pp] as no | 5 |
|
