| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should know [art] [noun] | 30 |
|
| 2 | should know the [noun] | 29 |
|
| 3 | should know [art] [noun sg] | 22 |
|
| 4 | should know [art] [noun pl] | 8 |
|
