| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it should [vb infin] | 1630 |
|
| 2 | [vb base] it [vb infin] | 682 |
|
| 3 | [vb base] it should | 168 |
|
| 4 | [vb base] should [vb infin] | 46 |
|
