| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] should know [adv] [subord] [to-vb] | 5 |
|
| 2 | should have know [adv] [subord] [to-vb] | 12 |
|
| 3 | should [vb infin] know [adv] [subord] [to-vb] | 12 |
|
| 4 | should have know [adv] [subord] [to-vb] | 12 |
|
| 5 | should [verb] know [adv] [subord] [to-vb] | 12 |
|
