| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] know something [prep] | 23 |
|
| 2 | [modal v] know something [prep] | 23 |
|
| 3 | [modal v] know something [prep] | 23 |
|
| 4 | [modal v] know something about | 18 |
|
| 5 | should know something [prep] | 9 |
|
| 6 | should know something [prep] | 9 |
|
| 7 | may know something [prep] | 5 |
|
| 8 | may know something [prep] | 5 |
|
