| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must [verb] [verb] [pers pn] at | 8 |
|
| 2 | [pers pn] must [verb] [verb] [pers pn] at | 7 |
|
| 3 | must [verb] [verb] [pers pn] at [noun] | 5 |
|
