| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be to [be] | 24 |
|
| 2 | [vb mod] be to [be] | 24 |
|
| 3 | must be to [be] | 9 |
|
| 4 | must [be] to [be] | 9 |
|
| 5 | must be [prep] [be] | 9 |
|
| 6 | must be to [be] | 9 |
|
