| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [vb infin] [pron] [verb] | 497 |
|
| 2 | [modal v] [vb infin] [pron] know | 277 |
|
| 3 | [vb mod] [vb infin] [pron] know | 277 |
|
| 4 | should [vb infin] [pron] [vb infin] | 70 |
|
| 5 | should [vb infin] [pron] know | 22 |
|
| 6 | should [verb] [pron] know | 12 |
|
| 7 | should [vb infin] [pron] know | 12 |
|
