| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [verb] [verb] that | 320 |
|
| 2 | must be [verb] [verb] [conj] | 91 |
|
| 3 | must be [verb] [verb] that | 65 |
|
| 4 | must be [verb] [verb] [that] | 65 |
|
| 5 | must [be] [verb] [verb] that | 65 |
|
