| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [vb infin] [pron] [be] [verb] | 42 |
|
| 2 | should [verb] [pron] [be] [verb] | 42 |
|
| 3 | [modal v] know [pron] [be] [verb] | 41 |
|
| 4 | [vb mod] know [pron] [be] [verb] | 41 |
|
| 5 | should know [pron] [be] [verb] | 8 |
|
| 6 | should know [pron] [be] [verb] | 8 |
|
