| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [pron] [vb infin] | 3015 |
|
| 2 | [modal v] it [vb infin] | 1383 |
|
| 3 | [vb mod] it [vb infin] | 1383 |
|
| 4 | should it [verb] | 190 |
|
| 5 | should it [vb infin] | 189 |
|
