| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must be [conj] [prep] | 7 |
|
| 2 | must [be] [conj] [prep] | 7 |
|
| 3 | must [be] [conj] [prep] | 7 |
|
| 4 | must [be] [that] [prep] | 5 |
|
| 5 | must [be] that [prep] | 5 |
|
| 6 | must [be] that [prep] | 5 |
|
