| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] to be [verb] | 492 |
|
| 2 | must [be] [verb] to be | 71 |
|
| 3 | must [verb] to be [verb] | 13 |
|
| 4 | must [be] [verb] to [verb] | 6 |
|
