| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] know their | 19 |
|
| 2 | [modal v] know their | 19 |
|
| 3 | [vb mod] know their | 19 |
|
| 4 | will know their | 6 |
|
| 5 | must know their | 5 |
|
| 6 | will know their | 5 |
|
| 7 | must know their | 5 |
|
| 8 | should know their | 5 |
|
| 9 | should know their | 5 |
|
