| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [prep] [be] | 13722 |
|
| 2 | should [vb infin] [prep] | 5559 |
|
| 3 | should [vb infin] [be] | 2037 |
|
| 4 | should [prep] [be] | 50 |
|
