| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | we should [verb] | 3482 |
|
| 2 | we should [vb infin] | 3478 |
|
| 3 | [pron] should know | 417 |
|
| 4 | [pers pn] should know | 376 |
|
| 5 | we [modal v] know | 257 |
|
| 6 | we should know | 27 |
|
| 7 | we should know | 26 |
|
