| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they must [verb] [prep] the | 46 |
|
| 2 | they must [vb infin] [prep] the | 46 |
|
| 3 | they must [verb] to the | 8 |
|
| 4 | they must [verb] with the | 5 |
|
