| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [pron] must [verb] | 1135 |
|
| 2 | [noun sg] [pron] must [vb infin] | 1133 |
|
| 3 | [noun sg] [pron] [modal v] know | 158 |
|
| 4 | [noun] [pron] must know | 19 |
|
| 5 | [noun sg] [pron] must know | 12 |
|
