| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] [verb] [prep] [pos pn] | 2105 |
|
| 2 | must [be] [verb] [prep] [pron] | 276 |
|
| 3 | must [be] [verb] [prep] [pos pn] | 153 |
|
| 4 | must [be] [verb] [prep] [pos pn] | 153 |
|
