| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] should [vb infin] [pron] know | 12 |
|
| 2 | [pron] should [vb infin] [pron] know | 12 |
|
| 3 | i should [vb infin] [pron] know | 5 |
|
| 4 | i should [vb infin] [pron] know | 5 |
|
| 5 | should [vb infin] [pron] know [adv] | 5 |
|
