| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [vb infin] [prep] [pron] [num ord] | 8 |
|
| 2 | should [verb] [prep] [pron] [num ord] | 8 |
|
| 3 | should [verb] [prep] [pos pn] [num ord] | 8 |
|
