| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must [verb] | 20007 |
|
| 2 | one [modal v] [verb] | 6166 |
|
| 3 | [indef pn] must [verb] | 688 |
|
| 4 | one must [verb] | 433 |
|
