| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [be] [verb] [adv prt] [prep] | 204 |
|
| 2 | they must [be] [verb] [prep] | 142 |
|
| 3 | they must [verb] [adv prt] [prep] | 22 |
|
| 4 | they must [be] [verb] [adv prt] | 11 |
|
