| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [adv] be [verb] [prep] | 470 |
|
| 2 | [indef pn] must be [verb] [prep] | 36 |
|
| 3 | [indef pn] must [adv] [verb] [prep] | 16 |
|
| 4 | [indef pn] must [adv] be [verb] | 7 |
|
