| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [be] [verb] [conj] | 1567 |
|
| 2 | [be] [verb] [conj] a | 698 |
|
| 3 | must [be] [verb] a | 98 |
|
| 4 | must [verb] [conj] a | 26 |
|
