| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [be] [verb] [prep] be [vb pp] | 203 |
|
| 2 | [modal v] [be] [verb] [prep] be [vb pp] | 203 |
|
| 3 | must [be] [verb] [prep] be [verb] | 15 |
|
| 4 | must [be] [verb] [prep] be [vb pp] | 13 |
|
| 5 | must [be] [verb] [prep] [be] [vb pp] | 13 |
|
| 6 | must [be] [verb] [prep] [be] [vb pp] | 10 |
|
| 7 | must [be] [verb] [prep] be [vb pp] | 10 |
|
