| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [adv] [be] [verb] [prep] | 470 |
|
| 2 | must [adv] [be] [verb] [prep] | 470 |
|
| 3 | [modal v] [adv] [be] [verb] upon | 67 |
|
| 4 | must [adv] [be] [verb] upon | 12 |
|
| 5 | must [adv] [be] [verb] upon | 6 |
|
