| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should have known [adv] [subord] [to-vb] | 12 |
|
| 2 | should have known [adv] [subord] [to-vb] | 12 |
|
| 3 | [modal v] have known [adv] [subord] [to-vb] | 12 |
|
| 4 | [vb mod] have known [adv] [subord] [to-vb] | 12 |
|
| 5 | have known [adv] [subord] [to-vb] [pron] | 5 |
|
