| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it should [verb] | 1638 |
|
| 2 | it should [vb infin] | 1630 |
|
| 3 | [pron] should see | 215 |
|
| 4 | it [modal v] see | 50 |
|
| 5 | it should see | 5 |
|
