| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [subord] [pers pn] must [vb infin] | 12 |
|
| 2 | as [subord] [pers pn] must [verb] | 10 |
|
| 3 | [prep] if [pers pn] must [verb] | 10 |
|
