| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [vb infin] [verb] | 6471 |
|
| 2 | [vb infin] [verb] it | 5765 |
|
| 3 | should [verb] it | 903 |
|
| 4 | should [vb infin] it | 902 |
|
