| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [vb infin] [verb] the | 504 |
|
| 2 | which must [vb infin] [verb] | 83 |
|
| 3 | which must [verb] the | 24 |
|
| 4 | which must [vb infin] the | 24 |
|
