| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [vb infin] [vb pp] [pron] | 986 |
|
| 2 | [modal v] [vb infin] [vb pp] [pn reflx] | 297 |
|
| 3 | should [vb infin] [verb] [pn reflx] | 39 |
|
| 4 | should [verb] [vb pp] [pn reflx] | 25 |
|
